Relive day five of the World Athletics Championships

We're coming to the end of our coverage but before we go it's worth mentioning that Michael Johnson will be on BBC Radio 5 live on Thursday evening, between 20:10 and 21:00 BST. 

If you've got any questions for the 400m world record holder, Thursday night could be the night for answers.

"Van Niekerk was going to go off in an ambulance but the ambulance has gone and he has stayed and is still receiving medical treatment in the stadium. I am not sure what the attention is he is receiving but it is more encouraging news."

The latest on Wayde Van Niekerk is that the South African is a-ok, though he is still receiving medical treatment. 

Quote Message: Very few athletes have done what I have done. There will not be another YouTube athlete coming through. I want to go back and watch my throw, it was almost perfect. from Kenya's Julius Yego, javelin gold medallist

Very few athletes have done what I have done. There will not be another YouTube athlete coming through. I want to go back and watch my throw, it was almost perfect.

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Was Wayde Van Niekerk's 400m gold the performance of the day or did Julius Yego steal the show by winning Kenya's first gold in the field? 

Quote Message: It was unbelievable, I am happy I won a gold medal for Kenya. I have been training hard for this championships. After Birmingham I had a serious injury and thought I would not be competing so to throw big like this is unbelievable. from Kenya's Julius Yego, javelin gold medallist

It was unbelievable, I am happy I won a gold medal for Kenya. I have been training hard for this championships. After Birmingham I had a serious injury and thought I would not be competing so to throw big like this is unbelievable.

Van Niekerk was taken out of his comfort zone. Merritt stretched him, but he gave everything he had, he was able to hold form and get to the finish line. 

What do you have to do to become a world champion? Push yourself when the legs are screaming no, go quicker than you've ever run before, take your body to places its never been. 

You won't have the energy for a victory lap, mind, and stepping on that podium the next day is going to paaaain-ful. 

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Quote Message: l ran a personal best, I ran well but not good enough for the gold. I can't complain, I got a silver and go home with some hardware. The 400m is never easy. We are warriors and rise to the occasion. from LaShawn Merritt, men's 400m silver medalist

l ran a personal best, I ran well but not good enough for the gold. I can't complain, I got a silver and go home with some hardware. The 400m is never easy. We are warriors and rise to the occasion.

AFPCopyright: AFP

Domanica's Luguelin Santos broke a national record, clocking 44.11, but that was only good enough for fourth.

Quote Message: It was a special occasion, a once-in-a-lifetime race and I am glad to be part of a special group of 400m runners in this era. from Kirani James, who won bronze in the men's 400m final

It was a special occasion, a once-in-a-lifetime race and I am glad to be part of a special group of 400m runners in this era.

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Quote Message: There were a lot of fireworks in the final. I tried to come out and put in a decent performance but it was just beyond my reach. I will take that, go home and come back and cause some problems. It is quite an achievement for me to come here and make the final and run 44 seconds back to back, but I will come back stronger. from Britain's Rabah Yousif, who came sixth in men's 400m final

There were a lot of fireworks in the final. I tried to come out and put in a decent performance but it was just beyond my reach. I will take that, go home and come back and cause some problems. It is quite an achievement for me to come here and make the final and run 44 seconds back to back, but I will come back stronger.

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Britain's Rabah Yousif was sixth in 44.68. 

An incredibly quick race and Wayde van Niekerk's legs have given away. There'll be no lap of honour for the South African as the medical team come to take him away on a stretcher. Exhausted and elated in equal measure. 

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Quote Message: Van Niekerk can't celebrate, he's holding on to the barrier for support, and he's down again. He's in so much pain. He's not thinking about a lap of honour. That's how hard it was.

Van Niekerk can't celebrate, he's holding on to the barrier for support, and he's down again. He's in so much pain. He's not thinking about a lap of honour. That's how hard it was.

Quote Message: That's how you run a 400m! He screamed out of the blocks and put so much air between Kirani James and himself that he gave James no chance of thinking he could close the gap. That was painful, he will be crying lactic, he can't even stand up.

That's how you run a 400m! He screamed out of the blocks and put so much air between Kirani James and himself that he gave James no chance of thinking he could close the gap. That was painful, he will be crying lactic, he can't even stand up.

AFPCopyright: AFP

Quote Message: A stunning performance from Van Niekerk. Who could have predicted he would run a 43.48 seconds, that puts him fourth on the world all-time list. Merritt and James could not catch him, a brilliant win and a brilliant time to beat a brilliant field.

A stunning performance from Van Niekerk. Who could have predicted he would run a 43.48 seconds, that puts him fourth on the world all-time list. Merritt and James could not catch him, a brilliant win and a brilliant time to beat a brilliant field.

LaShawn Merritt explodes out of the blocks like a firecracker. Can anyone chase him down? Yep. South Africa's  Wayde van Niekerk gets him at the bend and is home and dry in 43.48. 

That puts the South African fourth in the all-time list. Merritt takes silver in a personal best 43.65, while Olympic champion Kirani James ends up with a bronze in a season's best 43.78.

Quote Message: This is the highest quality field of 400m runners I have seen in a long time. Six of the eight athletes in the field have under 44 seconds, we haven't see that in the 400m for quite some time.

This is the highest quality field of 400m runners I have seen in a long time. Six of the eight athletes in the field have under 44 seconds, we haven't see that in the 400m for quite some time.

Olympic champ Kirani James was beaten by LaShawn Merrit in the 2013 World Championships final, of course, and the American is in contention again, in Beijing to defend his title.

Britain's Rabah Yousif Bkheit, who set a personal best in the semi-final, crosses his fingers as he's announced.

"I'm going to declare war now. I'm going to chase after a medal," he said after progressing to the final. 

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That hour is now upon us. The curtain will close on day five of the World Championships when the 400m final concludes. 

The one-lap kings set quick times in the heats, not so quick in the semi-finals, so how fast will they go today? 

It's very much seen as a battle between Olympic champion Kirani James and South Africa's Wayde van Niekerk. 

Quote Message: I am a bit tired and need some rest, but I am feeling OK. I tried to preserve some energy for the final. The 200m is my best event and I believe I will do well." from Usain Bolt after winning his 200m semi-final

I am a bit tired and need some rest, but I am feeling OK. I tried to preserve some energy for the final. The 200m is my best event and I believe I will do well."

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The draw for Thursday's 200m final has been revealed and Britain's Zharnel Hughes has drawn the short straw. He's in lane five, which doesn't sound so bad, but he's got Justin Gatlin inside him in lane four and training partner Usain Bolt outside him in lane six.

Quote Message: That looked like it was going to be a German victory but what a run from the Kenyan athlete. She didn't take the water jump the prettiest but she wanted the gold the most.

That looked like it was going to be a German victory but what a run from the Kenyan athlete. She didn't take the water jump the prettiest but she wanted the gold the most.

Quote Message: Kenya are collecting gold after gold, what a championship they are having.

Kenya are collecting gold after gold, what a championship they are having.

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What a finish. There were three in contention... swaying, running like they've been on the hard liquor such punishment their legs have taken. 

But it was Kenya's Hyvin Jepkemoi who had the speed to pull clear of the rest, winning in 9:19.11.

Tunisia's Habiba Ghribi had to make do with second, while Germany's Gesa Felicitas Krause was third. 

The pole jump final is reaching a conclusion and, on her final attempt, Cuba's Yarisley Silva clears 4.90m! Bravo. Her team are cock-a-hoop and who can blame them. Their lady has one hand on the gold medal. 

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The next gold medal will be awarded to the best female 3,000m steeplechaser in the world. Kenya's Virginia Nyambura, victorious in three Diamond League races this year, is one of the favourites. 

The others to keep an eye on are Tunisia's Habiba Ghribi and Ethiopian duo Hiwot Ayalew and Sofia Assefa. 

Holly Bradshaw fails all three attempts at 4.80, which means the Briton has no chance of winning a medal in the pole vault. 

She did vault a season's best 4.70m, though, and can say she's the seventh best pole vaulter in the world

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Quote Message: Bolt was just in cruise mode and did enough to come off the bend in first place. He has so much spare. He is maybe looking to do something special in that final.

Bolt was just in cruise mode and did enough to come off the bend in first place. He has so much spare. He is maybe looking to do something special in that final.

Quote Message: "Gatlin will have to jump all over Bolt around the bend. The lane draw will be so important in the final. Can Gatlin put Bolt under pressure? This is getting more and more exciting.

"Gatlin will have to jump all over Bolt around the bend. The lane draw will be so important in the final. Can Gatlin put Bolt under pressure? This is getting more and more exciting.

Usain Bolt closes in on Danny Talbot coming into the bend and it's easy for the six-time Olympic champion, who wins in a season's best 19.96. 

Talbot was sixth, producing a personal best 20.27. 

The two other automatic qualifiers were South Africa's Anaso Jobodwana (20.01)  and Turkey's Ramil Guliyev (20.10).

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Quote Message: 19.87 secs is worrying for everyone in the 200m, that is faster than most athletes in the field and Gatlin cruised to it.

19.87 secs is worrying for everyone in the 200m, that is faster than most athletes in the field and Gatlin cruised to it.

The final 200m semi-final of the day and the cameras are focusing their lenses on Usain Bolt. Britain's Danny Talbot is running on the Jamaican's outside. 

Kei Takase (Jpn)

Miguel Francis (Ant)

Ramil Guliyev (Tur)

Kenji Fujimitsu (Jpn) 

Anaso Jobodwana (SA)

Usain Bolt (Jam)

Daniel Talbot (GB)

Roberto Skyers (Cub)  

Quote Message: Gatlin thumped everyone on the bend, he is the man in form, the world leader at this distance and you can see why.

Gatlin thumped everyone on the bend, he is the man in form, the world leader at this distance and you can see why.

Quote Message: Gatlin exploded out of the blocks and was able to coast in the straight. He crumbled under the pressure in the 100m but to run this time in the semi-finals shows there's no fitness issues, it's whether Bolt can put the pressure on him again.

Gatlin exploded out of the blocks and was able to coast in the straight. He crumbled under the pressure in the 100m but to run this time in the semi-finals shows there's no fitness issues, it's whether Bolt can put the pressure on him again.

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Justin Gatlin ahead after 100m and while Alonso Edward (20.02) and Femi Ogunode (20.05) close in on him with the finishing line nearing, the American comfortably wins in 19.87. 

Quote Message: It was not the best of starts from Zharnel Hughes but he looked very comfortable on the curve and handled himself very well. He runs like an athlete who is far more experienced and I was very impressed. He has put himself in a good position to get a medal.

It was not the best of starts from Zharnel Hughes but he looked very comfortable on the curve and handled himself very well. He runs like an athlete who is far more experienced and I was very impressed. He has put himself in a good position to get a medal.

Justin Gatlin is in the second semi. "He who must not be named," says Andrew Cotter in the commentary box. 

Sixteen-year-old Abdul Hakim Sani - who won his heat - in this race, too. 

Reynier Mena (Cub)

Jeremy Dodson (Sam)

Alonso Edward (Pan)

Julian Forte (Jam)

Femi Ogunode (Qat)

Justin Gatlin (USA)

Yancarlos Martinez (Dom)

Abdul Hakim Sani Brown (Jpn)

Quote Message: I hit my toe on the bloke and that slowed me down when I got out, but nevertheless I am in the final that is what I wanted and I have a good lane draw. I am ready to run against the best guys in the world. from Zharnel Hughes after winning his 200m semi-final

I hit my toe on the bloke and that slowed me down when I got out, but nevertheless I am in the final that is what I wanted and I have a good lane draw. I am ready to run against the best guys in the world.

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How good was Zharnel Hughes' performance? He pushed Jamaica's Nickel Ashmeade (20.19) into second and Dutchman Churandy Martin (20.20) into third. 

Familiar names failed to qualify - with Christophe Lemaitre fifth and Warren Weir seventh. 

Quote Message: Zharnel Hughes could go on to break the British record and could get a bronze medal. That was a fantastic, professional run. He didn't ease down too early. He wanted one of the middle lanes and to be taken seriously as a contender.

Zharnel Hughes could go on to break the British record and could get a bronze medal. That was a fantastic, professional run. He didn't ease down too early. He wanted one of the middle lanes and to be taken seriously as a contender.

How good is British champion Zharnel Hughes?  The Briton crosses himself before he places both hands on the track in preparedness for lift-off. 

Everyone comes out of the bend shoulder-to-shoulder, but Zharnel Hughes nips ahead, clocking 20.14. He's through to the final. 

Before we talk more about Justin Gatlin and Usain Bolt, we must focus on the first heat which features Britain's Zharnel Hughes. Here's how they line up: 

Nickel Ashmeade (Jam)

Akani Simbine (SA)

Warren Weir (Jam)

Churandy Martina (Ned)

Likourgos-Stefanos Tsakonas (Gre)

Zharnel Hughes (GB)

Brendon Rodney (Can)

Christophe Lemaitre (Fra)

"I’m feeling tired,” said Usain Bolt on Tuesday after clocking 20.28 seconds to reach the 200m semi-finals. But a champion doesn't rest. 

The Jamaican, who his hoping to win a third consecutive 200m world title, must go again. And hopefully again, if he reaches the final. 

Bolt's drawn in the third semi-final and will set off at around 13:46 BST. 

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Justin Gatlin and Usain Bolt are never away from the Bird's Nest. The world's two premier sprinters are racing around half of the track again  at bullet speeds in a bid to reach the 200m final. 

Gatlin, the world 200m champion in 2005, has been dominant in this event this year, running three of the five fastest times of the year, but we've learned from Sunday's 100m final that setting world leading times counts for nothing at a major championship. 

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Quote Message: Sixth in the world is a great achievement but I felt I let myself down a bit. I felt I could have got a medal. I am going to take this motivation and hopefully do something at the Olympics next year. from Eilidh Child after coming sixth in the 400m hurdles final

Sixth in the world is a great achievement but I felt I let myself down a bit. I felt I could have got a medal. I am going to take this motivation and hopefully do something at the Olympics next year.

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Quote Message: "Hejnova is brilliant and has a lot of patience, she has a good technique and good rhythm. Even when there are distractions around her she keeps a cool head which is crucial when it comes to the final two barriers and that is why you see her run a new world lead and take the title.

"Hejnova is brilliant and has a lot of patience, she has a good technique and good rhythm. Even when there are distractions around her she keeps a cool head which is crucial when it comes to the final two barriers and that is why you see her run a new world lead and take the title.

Quote Message: It was always going to be a tough race for Eilidh today She was not in a lane close to Hejnova and Little and was not able to get into the mix.

It was always going to be a tough race for Eilidh today She was not in a lane close to Hejnova and Little and was not able to get into the mix.

Yego's history-making meant our attention was sharply drawn away from the women's 400m hurdles final. For those of you wanting a bit more information, Eilidh Child came sixth in 54.78. 

"I feel like I've let myself down a bit," says the Briton. 

Silver? Shamier Little in 53.94. Perhaps more athletes will now start wearing bows in their hair. Bronze went to Cassandra Tate (54.02) to complete and American two-three. 

Quote Message: Julius Yego is on billboards everywhere in Kenya. If he was a legend already in Kenya he's now elevated himself to icon. He will enjoy every moment of this. Another medal for Kenya - they are taking over the world!

Julius Yego is on billboards everywhere in Kenya. If he was a legend already in Kenya he's now elevated himself to icon. He will enjoy every moment of this. Another medal for Kenya - they are taking over the world!

A celebratory jig from Julius Yego as he learns he has become world champion, the first Kenyan to win a world title in a field event. 

The Commonwealth Champion's 92.72m winning throw ruined everyone else's hopes. Only two men have thrown further than that. 

Egypt's Ihab Abdelrahman El Sayed (88.99) wins silver, with Finland's Tero Pitkamaki (87.64) taking bronze. 

The favourite and defending champion Zuzana Hejnova is clear of everyone after negotiating the final barrier which means there's only going to be one winner. 

The Czech wins in a world leading 53.50. Brit Eilidh Child was sixth. 

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Quote Message: It was one of the slowest qualifying times to make it, but this is a new day. When you're in the final then it's an opportunity. There are barriers in front of these athletes - you never know what might happen.

It was one of the slowest qualifying times to make it, but this is a new day. When you're in the final then it's an opportunity. There are barriers in front of these athletes - you never know what might happen.

Holly Bradshaw clears a season's best 4.70m at her first attempt and the Briton gives out a cat-like yelp. 

But what can Eilidh Child go in the women's 400m hurdles final? The Scot preparing herself on the start line, swaying from side to side. 

Thankfully, America's Shamier Little has decided to compete wearing a radioactive green ribbon in her hair.

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Quote Message: "It is staggering what her potential is and where she can go from here. She still has a lot of power and strength to build on.

"It is staggering what her potential is and where she can go from here. She still has a lot of power and strength to build on.

We're into the final round in the javelin and, unsurprisingly, Julius Yego skipped the fourth and fifth rounds after his record-setting 92.72m effort in the third round. 

The Kenyan looks set for gold, with Egypt's Ihab Abdelrahman El Sayed his closest challenger with a season's best 88.99m. 

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Quote Message: "I'm really, really happy. I didn’t expect to run a PB in the heat. I did feel relaxed which is why I was quite surprised with the time. The three who won gold have inspired us. I just have to see how the next round goes. from Dina Asher-Smith British 200m qualifier talking to BBC Sport

"I'm really, really happy. I didn’t expect to run a PB in the heat. I did feel relaxed which is why I was quite surprised with the time. The three who won gold have inspired us. I just have to see how the next round goes.

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I was very impressed with the start and she looked comfortable on the bend. She was really, really relaxed running the personal best. She looks like she's been doing this for 10 years, but she's only 19. Let's see what she does over the next few years.

Quote Message: "Dina Asher-Smith is the real deal. This track is electric and for her to run that time from lane two shows her class. She looked so comfortable.

"Dina Asher-Smith is the real deal. This track is electric and for her to run that time from lane two shows her class. She looked so comfortable.

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What a bend that was brilliant bend. A PB in qualifying. 

Dina Asher-Smith overtakes Ivet Lalova-Collio on her inside in just a few strides and, from lane one, comes out of the bend in first place and doesn't relinquish the lead. 

A personal best 22.22 for the Briton, who eases off in the final few meters. 

Jamaica's Sherone Simpson (22.52) was second, with Lalova-Collio (22.54) third. 

Britain's fastest teenager, the fastest woman in British history, is getting ready to race in the last 200m heat of the day. 

History student, and history-maker, Asher-Smith broke the 100m British record earlier this summer and became the first British woman to dip under 11 seconds in the distance at the London Anniversary Games. What can she do on the biggest stages of all? 

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News filtering through that Veronica Campbell-Brown is through to the semi-finals because, according to the rule book, the Jamaican did not impede another athlete or gain an advantage from straying into the wrong lane. 

"What's the point of having lanes, then?" asks a colleague. 

Dafne Schippers, world 100m silver medalist, goes in the penultimate 200m head and the Dutchwoman has time to ease off the throttle, glance around to see where her rivals are, and saunter to victory in 22.58. 

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Quote Message: "I picked up a few niggles in holding camp and I wanted to make sure my muscles stayed together. I feel fine now and hopefully tomorrow I won't need these. from Margaret Adeoye tells Radio 5 live why she is running in leggins

"I picked up a few niggles in holding camp and I wanted to make sure my muscles stayed together. I feel fine now and hopefully tomorrow I won't need these.

Quote Message: She helped me get to the finish line so I'm not complaining. That's not happened to me before. I felt a bit rusty but I wanted to make sure I got through. from Margaret Adeoye British 200m qualifier

She helped me get to the finish line so I'm not complaining. That's not happened to me before. I felt a bit rusty but I wanted to make sure I got through.

Quote Message: "It was almost like Campbell-Brown had too much speed around the bend and lost her way. She made no attempt to go back to her lane and I'm sure she will get disqualified, even though she was five metres ahead of Adeoye."

"It was almost like Campbell-Brown had too much speed around the bend and lost her way. She made no attempt to go back to her lane and I'm sure she will get disqualified, even though she was five metres ahead of Adeoye."

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Margret Adeoye was out of the top three after 150m, but the Briton pulls through to progress in 23.10. 

Unsurprisingly, former champion Veronica Campbell-Brown won the race but - incredibly - she finished the race in Adeoye's lane. 

The Jamaican, an experienced 33-year-old, a two-time champion, lost her bearings coming out of the bend and ended up in forbidden territory. Astonishing. Automatic disqualification for Campbell-Brown, surely. 

Margaret Adeoye, who is running in tights - the Beijing night perhaps a tad too chilly for her -  is the Briton contending the fifth 200m heat of the day. 

Running besides her will be former champion Veronica Campbell-Brown, who returns to action after missing the last World Championships following a failed drugs test. 

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Quote Message: That was crazy. I had a bad year. This is the best I've felt until last year. To run a season's best at my first world champs, I'm happy. from Bianca Williams British 200m runner

That was crazy. I had a bad year. This is the best I've felt until last year. To run a season's best at my first world champs, I'm happy.

Quote Message: It was a decent start. I'd like to see Bianca get out of the blocks quicker. It was really good form coming down the home straight.

It was a decent start. I'd like to see Bianca get out of the blocks quicker. It was really good form coming down the home straight.

Acres between Elaine Thompson and the rest, who is almost able to walk to the line and clock 22.78. Britain's Bianca Williams came second in a season's best 22.85. Canada's Khamica Bingham (22.90) is the third automatic qualifier. 

Britain's Bianca Williams, bronze medallist at the Commonwealth Games, sets off in the fourth 200m heat. 

She will be against Jamaica's Elaine Thompson (lane five) who is the fastest Jamaican over the distance after setting a personal best 22.10 in July. 

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Cor blimey! Julius Yego has produced a phenomenal throw. The 5ft 9in Kenyan has thrown a world leading 92.72, which is a Commonwealth record - and the third longest in history. 

Kenya on course for a first non-track gold. 

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Quote Message: It is and it isn't disappointing news. It's disappointing people are still trying to cheat and it's good they are still catching them. It's not good for the Kenyan team. I don't think it's systemic, but it's a massive issue in Kenya.

It is and it isn't disappointing news. It's disappointing people are still trying to cheat and it's good they are still catching them. It's not good for the Kenyan team. I don't think it's systemic, but it's a massive issue in Kenya.

As we've already reported, Kenyan athletes Koki Manunga and Joyce Zakary have been given provisional bans after failing doping tests at the world championships.

Zakary, 29, ran a Kenyan record of 50.71 in the heat of the 400m in Beijing but failed to start the semi-final. Manunga, 21, finished sixth in her heat in the 400m hurdles last Sunday and failed to progress to the next round. 

Holly Bradshaw progressing nicely in the pole vault. The Briton has cleared 4.50m on her first attempt, as have seven other athletes. 

In the women's 200m, by the way, Marie-Josee Ta Lou (22.73), Jenna Prandini (22.95) and Justine Palframan (23.09) are through to the semi-finals. I know, big news. 

But Blessing Okagbare has withdrawn from the third 200m heat, although we do not know why. 

Germany's Thomas Rohler has set the standard in the men's javelin, throwing 86.68m on his first attempt. 

Kenya's Julius Yego fouled on his first attempt but recorded 82.42m with his second effort. 

Can he become the first Kenyan to win a field gold at a World Championships? 

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There must be something happening on the track, I hear you say. Well, yes there is. The women's 200m heats have just begun. 

Britons Dina Asher-Smith (heat seven), Bianca Williams (heat four) and Margaret Adeoye (heat five) will be trying to reach the semi-finals. 

Three from each heat progress and already through from the first heat are Candyce McGrone (22.45), Mujinga Kambundji (22.92) and Viktoriya Zyabkina (22.92).

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Quote Message: It's been a mad day. I've had an hour's sleep - I've been doing media all day. On one level it's the best of all my golds. The people I went against at the Worlds didn't do as well as earlier in the year but I can only do my best. When I go out on the track it's about me and jumping far. I've been able to block out around me what's been happening. I'm very lucky to be competing at a high stage. from Greg Rutherford World long jump champion talking to BBC Sport

It's been a mad day. I've had an hour's sleep - I've been doing media all day. On one level it's the best of all my golds. The people I went against at the Worlds didn't do as well as earlier in the year but I can only do my best. When I go out on the track it's about me and jumping far. I've been able to block out around me what's been happening. I'm very lucky to be competing at a high stage.

Greg Rutherford, with a precious gold medal hanging around his neck, is at the Bird's Nest and is talking to Gabby Logan and co.

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Quote Message: His training this year has been back on track and he's looked better than he has in the 100m hurdles. He would like to go to that kidney transplant next week with a gold medal. His USA team-mate David Oliver is running very well too.

His training this year has been back on track and he's looked better than he has in the 100m hurdles. He would like to go to that kidney transplant next week with a gold medal. His USA team-mate David Oliver is running very well too.

From the dispiriting to the inspiring. Olympic 110m hurdles champion Merritt and world record holder has kidney function which is less than 20%. He will have surgery on 1 September with sister, LaToya Hubbard, donating one of her kidneys.

He qualified for the semi-finals earlier today.

Dark clouds hovering over today's athletics both literally and metaphorically because Kenyan athletes Koki Manunga and Joyce Zakary have been given provisional bans after testing positive for the use of banned substances at the World Championships. 

The 400 metres runners were targeted in pre-competition tests at their team hotel on 20 and 21 August, the sport's governing body, the IAAF, said in a statement.

Quote Message: Eighteen months out and we didn't know what sort of shape she'd be in. In qualification she looked fantastic. She jumped to 4.55m. It's the re-entry to the sport she loves so who knows what might happen.

Eighteen months out and we didn't know what sort of shape she'd be in. In qualification she looked fantastic. She jumped to 4.55m. It's the re-entry to the sport she loves so who knows what might happen.

For those of you wanting to know, Greece’sNikoleta KiriakopoulouandCuba’s Olympic silver medallistYarisley Silvahave been the form athletesof2015.

Remember Holly Bleasdale? The Briton now goes by the name of Holly Bradshaw, primarily because she met a man called Mr Bradshaw and married him. 

We've not seen her soaring ridiculous heights for about 16 months because of a back injury, and she's talked down her chances at these championships - but Bradshaw comfortably qualified for the final so perhaps there's a chance of a medal. 

The pole vault final has begun and Bradshaw has cleared her opening height of 4.35m. 

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It's the weather for ducks in the Chinese capital, not pole vaulters. Here's a picture of Australia's Alana Boyd sheltering from the rain before the women's pole vault final begins. 

Getty ImagesCopyright: Getty Images

Getty ImagesCopyright: Getty Images

Quote Message: Everyone loves him. Someone asked me, 'who would you pay to see?" I would pay to see David Rudisha. His win in the 800m Olympic final was one of the best all-time athletics performances I've ever seen.

Everyone loves him. Someone asked me, 'who would you pay to see?" I would pay to see David Rudisha. His win in the 800m Olympic final was one of the best all-time athletics performances I've ever seen.

Greg Rutherford has most of the Daily Telegraph's back page to himself. "One giant leap into history," says the paper of Rutherford's golden leap. 

"He does not always conform, he speaks his mind and he calls out critics. But he is the best long jumper in the world," writes the paper's Ben Bloom. 

Daily TelegraphCopyright: Daily Telegraph

Sara L. Uckelman:  Watching #bbcathletics, I have a desire to rearrange athletes & disciplines. Put a pole vaulter in the 200m, a long jumper in gynmastics.

Robert Leat:  Did anyone else notice the Chinese flag hit that guy in the face as it went up? 

Mo Farah's 10,000m gold? Usain Bolt slaying Justin Gatlin in the 100m? Jessica Ennis-Hill's magical heptathlon comeback? Greg Rutherford's historic leap? 

What has been your favourite moment of the World Championships? We really want to know the answer so if you could take part in our vote (on this page on desktop, or a tiny tab on mobile) we'd be most grateful. Thanks in advance. 

Has Greg Rutherford stopped smiling since Tuesday afternoon? It's highly unlikely. 

He shows off the pearly whites as he receives his golden gong... God Save the Queen rings out...Rutherford breathes deeply. 

Tears? A tiny drop if any. Perhaps he's all out of tears after his emotional interview with Phil Jones yesterday.

BBC SportCopyright: BBC Sport

Dark skies over Beijing, a rumble of thunder in the air, but the angry skies remaining calm for the men's long jump medal ceremony. Greg Rutherford the man waiting to stand on top of the podium, head and shoulders above the rest in the world... 

BBCCopyright: BBC

Reigning champion David Oliver, 33, won his heat in 13.15 seconds. The US team have suffered from ill-fortune and poor performances so far in these championships. 

This year's leading long jumper Jeff Henderson and 2012 Olympic 10,000m silver medallist Galen Rupp failed to win medals in their respective events.

Five-time national champion Bershawn Jackson failed to advance from the first round in the 400m hurdles, while 1500m runner Jenny Simpson finished 11th after losing her shoe in the final.

During the dark and soggy British night there was plenty of track and field happening the other side of the world. 

If you were sleeping you may not know that Britain's Sophie Hitchon will be in Thursday's hammer throw final, qualifying in fifth with a throw of 71.07m.

In the women's 800m heats, Britons Lynsey Sharp, Shelayna Oskan-Clarke and Jenny Meadows all progressed to Thursday's semi-finals.

And Lawrence Clarke completed a clean sweep of British qualifications in the morning session, as his time of 13.61 seconds in the 110m hurdles was enough to put him through to Thursday's semi-finals as one of the four quickest losers. Congratulations, everyone. 

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Quote Message: Mo looked comfortable and I expected Mo to be at the right place at the right time. Mo did so well to stay on his feet after almost falling. Only with experience do you know how to handle yourself.

Mo looked comfortable and I expected Mo to be at the right place at the right time. Mo did so well to stay on his feet after almost falling. Only with experience do you know how to handle yourself.

British world champion Mo Farah attempts something some will deem braver than going for a long distance double and that is entering an ice bath after his 5,000m heat. Watch Mo enter the chilly waters.

Farah nearly stumbled, Katarina Johnson-Thompson messed up the long jump in the heptathlon over the weekend, while America's Molly Huddle missed out on bronze by celebrating too early. 

All of which leads us to ask about your sporting horror stories and tales of sports days gone wrong. Tweet us using the hashtag  Mysportsdaydrama ortext 81111. 

If you have pictures to illustrate your stories then all the batter. 

"I'm lucky I stayed up. I almost went down again," Farah said, who also fell over midway through the race.  

"At that point you have to stay on your feet, concentrate and relax."

The Briton revealed he has been suffering with a sore right foot, but said "it's nothing to worry about".

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Talking of a member of the Super Saturday club, Mo Farah was endlessly running around the Bird's Nest track this morning. He enjoys it. He's good at it. 

But the world and Olympic champion nearly came a cropper in the 5000m heats as he was almost pushed over on the final bend. 

For those of you starting to hyperventilate, deep breaths, calm yourselves, because Farah made it through to Saturday's final, finishing second in his heat in 13 minutes 19.44 seconds.

You can watch Farah's near-miss fall by clicking here. 

Enough tweeting because Lynn 'the leap' Davies, who won Olympic long jump gold in 1964, has said Greg Rutherford is now one of Britain's all-time great athletes after becoming the first Briton to win World long jump gold. 

"He's a great competitor, he's very quick, he's developed sound technique and he seizes opportunities," says the Welshman of his fellow sand pit enthusiast. 

BBC SportCopyright: BBC Sport

Williams is part of the Great Britain women's 4x100m squad.

What is British 400m hurdler Perri Shakes-Drayton doing in Salford? She'll be discussing the events at the championships for the BBC throughout the day.

Everyone loves a medal table so here's one we prepared earlier. 

Greg Rutherford's gold takes Britain's golden tally to three and is enough to leapfrog Jamaica into second place. 

There could be more British medals today with Holly Bradshaw in the pole vault final (12:00 BST), Eilidh Child competing in the women's 400m hurdles final (13:10 BST) and Rabah Yousif Bkheit lining up in the 400m final at 14:25 BST. 

BBC SportCopyright: BBC Sport

Greg! Greg! Greg! How do you feel, Greg? Mr Rutherford is this morning's media darling.

Being that he's in Beijing not Philadelphia and in the absence of the 72 steps leading up to the Philadelphia Museum of Art, Rutherford took to Twitter to send a pumped-up message to his followers. 

Maybe he was tweeting with Bill Conti's Gonna Fly Now playing in the background... I guess we'll never know. 

Greg Rutherford says he hopes his achievement in Beijing will make people accept that he's a "half-decent British athlete".

Quote Message: The flak I took after winning the Olympics has been tough and at times you think ‘why am I bothering doing this?’ so to win a couple of titles last year and win again this year it’s great. I’m the Olympic, world, Commonwealth and European champion. I’m hoping that’s enough for people to accept I am a half-decent British athlete now.” from Greg Rutherford

The flak I took after winning the Olympics has been tough and at times you think ‘why am I bothering doing this?’ so to win a couple of titles last year and win again this year it’s great. I’m the Olympic, world, Commonwealth and European champion. I’m hoping that’s enough for people to accept I am a half-decent British athlete now.”

PACopyright: PA

Who's on the front page of the Daily Express? Britain's most famous long jumper. "Formidable Rutherford leaps to golden triumph," is what the paper has to say.

Daily ExpressCopyright: Daily Express

"Maybe now, after completing the grand slam of major titles in three years, having beaten everyone there is to beat, on different days, on different tracks, in different conditions, the equivocating will come to an end," writes our chief sports writer Tom Fordyce of Rutherford. 

"Some might still point dismissively at the distances he has jumped, in an event where the championship record is 8.95m. Rutherford's winning mark in London of 8.31m was the shortest to take Olympic gold since 1972.

"To which you can point out one detail, and then the critical one: the previous Olympic final had been won in 8.34m, and if it was all so easy, how come no-one else has been able to do it?"

EPACopyright: EPA

Quote Message: I'm so happy for him regardless of what's been happening outside athletics. He did it when it matters.

I'm so happy for him regardless of what's been happening outside athletics. He did it when it matters.

Greg Rutherford doesn't have to share the headlines with any of his British team-mates this morning. The world champion has the top half of theIndependentall to himself. "One giant leap: Rutherford joins pantheon of British greats," the paper says. 

IndependentCopyright: Independent

If you've been enduring a self-imposed news blackout over the last 24 hours you may not know Greg Rutherford won long jump gold in Beijing on Tuesday. 

There's a little more to add to that sentence. 

He became the first Briton to win a world title in the event, and his winning 8.41m leap into the sand means he is only the fifth Briton to hold all four major titles at the same time. Little wonder the boy from Milton Keynes has been dominating the sports headlines. 

AFPCopyright: AFP

Hello! It's day five of the World Championships in Beijing. Energy levels are high, enthusiasm even higher as we prepare for another afternoon of lung-busting runs and gravity-defying jumps. 

Usain Bolt and Justin Gatlin are back again, while British 100m champion Dina Asher-Smith makes her first appearance at the Bird's Nest, in the 200m heats.

Oh, and Olympic champion Kirani James and world champion LaShawn Merrit will go head-to-head in what should be a scrumptious men's 400m final. Ready? Let's go.  

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Is it better to have all your presents in a giddying 45-minute spell or to spread out the joy over three brilliant afternoons? 

London had Super Saturday, but in Beijing it's been a Super Saturday, Splendid Sunday and a Terrific Tuesday. 

Yep, Britain's champion trio have done it again and we're all basking in their golden glow. We all are, aren't we? 

Getty ImagesCopyright: Getty Images

Full schedule:

12:00 BST: Women's pole vault final

12:05 BST: Men's javelin final

12:15 BST: Women's 200m heats

13:10 BST: Women's 400m hurdles final

13:30 BST: Men's 200m semi-finals

14:00 BST: Women's 3000m steeplechase final

14:25 BST: Men's 400m final