Rio 2016 - day three action

So, gold medal in the pool again?

Siobhan-Marie O'Connor looks fantastic. A huge British record and PB and it looked so controlled and smooth. She can challenge Katinka Hosszu. It will be interesting to see if Hosszu pulls out of the 200m butterfly, which she is due to race in tomorrow as well.

She is the Iron Lady of swimming...

Of course, the actor has shown an affinity with water before - as witnessed in the 2008 film Surfer, Dude.

No. Me neither.

Katinka Hosszu wins her semi - but she was slower than Team GB's Siobhan-Marie O'Connor!

Siobhan-Marie O'Connor won her semi in 2:07.57. How quick will Katinka Hosszu be? 

Katinka Hosszu is left in the blocks, a terrible start, but she soon rallies and turns in third place. Don't forget, she won gold in the backstroke just over an hour ago. 

Siobhan-Marie O'Connor looks very good value for a medal after that swim, it's Hungarian Katinka Hosszu who is favourite though of course.

Hosszu goes next. 

Siobhan-Marie O'Connor is flying! She wins her semi-final with ease. That has put down a marker.

She wins in 2:07.57 - a new British record

Siobhan-Marie O'Connor leads the first semi in style after 50m...

Hungary's Tamas Kenderesi shocks the crowd as he beats USA's Michael Phelps in a time of 1:53:96 in the men's 200m butterfly semi-final.

Team GB have two swimmers in the last two races of the night.

Siobhan-Marie O'Connor and Hannah Miley are both looking for places in the final. 

USA's Lilly King grabs gold from Russia's Yulia Efimova in Women's 100m Breaststroke.

She said: "It just proves that you can compete clean and still come out on top with all the work you put in."

Chad le Clos: "I can't say too much about tomorrow, it's a great opportunity for me and five or six other people. It's been hard for me this year."

Hungary's Laszlo Cseh wins in the men's 200m butterfly in 1:55:18 at Rio 2016 Olympics.

Katinka Hosszu is up again next in the semis of the 200m individual medley. A busy night!

The crowd go quiet as Tamas Kenderesi comes through to beat Michael Phelps in a time of 1:53.96! Phelps looks unhappy with that, I don't think he was easing up too much.

Chad le Clos was third and will be in the final. 

Chad le Clos with work to do at halfway. Michael Phelps can cruise it from here. The time in the first semi was 1:55.18

Michael Phelps leading after 50m...