Watch again - Russia win Judo goldpublished at 22:53
As we're talking about catching up, you can also see Khasan Khalmurzaev beating American Travis Steven in the 81kg final to claim judo gold.
Phelps wins butterfly and relay titles - his 20th and 21st golds
GB's Siobhan-Marie O'Connor wins 200m medley silver
GB's 4x200m freestyle team win silver medal
Tennis: Serena Williams out; Murray and Konta win
USA win gymnastics women's team gold; GB fifth
GB men beat Brazil 9-1 for first hockey win
Gary Rose
As we're talking about catching up, you can also see Khasan Khalmurzaev beating American Travis Steven in the 81kg final to claim judo gold.
Luke Reddy
BBC Sport in Rio
Olympic mascot Vinicius is going to take a penalty, what could possibly go wrong?
His swing is reminiscent of that of Tiger Woods in his pomp and he nails it. He'd get in this Brazil side no worries.
And if you want to catch up on the action, not only from today but the rest of the Games, you can do so right here.
Night is falling in Rio. Christ the Redeemer is now illuminated, looking down on the city as the sun dips away for the day. We're entering the night-time activities, but that doesn't mean all drinks and dancing on the beach (though there will probably be plenty of that going on). There's still hockey, football, boxing, handball, beach volleyball and loads of other sport to watch at the top of this page.
#bbcrio2016
Brazil 1-3 Great Britain
Luke Reddy
BBC Sport in Rio
Is fair to say as half-time arrives that some of these Brazilian players are blowing like they'd climbed up to Christ the Redeemer with a bag of coal on their back.
After an early scare, Great Britain are on their way to third in the group for a while.
#bbcrio2016
Ben: "Down into the green abyss they go" says Leon Taylor on #bbcrio2016, external. I've seen cleaner-looking garden ponds!
Chris Speakman: Looks like the divers are diving into a swamp.
Louisa FG: Not that I can but if I could I definitely wouldn't be diving into that! #greenpool, external
An official from the aquatics venue has said that tests were conducted on the water and "there was found to be no risk to athletes' health".
He added: "We're investigating what the cause of the situation was but we're happy to report the competition was successfully completed."
Nick Hope
BBC Sport in Rio
"I've never dived in anything like it," Tonia Couch tells me after finishing fifth alongside Lois Toulson in the women's synchronised 10m platform competition.
"We noticed it in the warm-up and then by the competition it was even more green but if anything it actually made it a bit easier to spot (tell where the water was whilst spinning through the air), so it didn't make a difference though (to the result)."
And while there's still talking about water, the supposedly green pool at the diving centre has got plenty of you talking. Here's what it looks like. You tell me - is it green or not? Also, would you fancy diving into it?
Brazil 1-3 GB
Luke Reddy
BBC Sport in Rio
A super save from Brazil keeper Bruno Mendonca brings a huge roar from the locals and a breakaway has them delirious with excitement.
Ashley Jackson spoils the party. He's Britain's all-time record scorer and that goal means the small pocket of Brits sandwiched in with Brazilians can rejoice.
Men's Pool A
Great Britain have been banging away at the Brazilian bunker since the beginning of the second period and they've finally broken through after 12 minutes of trying.
It's from a well-taken penalty corner, Ashley Jackson delaying his sweep shot to perfection to put GB 3-1 up.
Staying in water, only in a pool rather than on the open stuff,Rami Anis, the 25-year-old from Syria who carried the flag at the opening ceremony for the refugee team, swam a personal best in the men's 100m freestyle heats.
But his time of 54.25 seconds was not enough to progress as he finished 56th out of 59.
Anis, who grew up in Aleppo, was taught swimming by his uncle and by studying YouTube videos of Michael Phelps.
He fled Syria for Turkey in 2011 to join his brother after the civil war started and four years laters made a treacherous journey to Belgium, where he was granted asylum in December 2015.
A little while ago, all of today's sailing action was concluded, with some good news for GB.
Nick Dempsey has retained his lead in the men's RS:X windsurfing, although he plans to protest against the result of his last race of the day, in which he was knocked into the water and finished 14th, leaving reigning champion, Netherlands' Dorian van Rijsselberghe, just one point adrift.
Giles Scott is in 10th after two races on his eagerly anticipated Olympic debut. The four-time world champion missed out at London 2012 because of a certain Sir Ben Ainslie.
Bryony Shaw is 10th after six races of the women's RS:X windsurfing. while Nick Thompson finished ninth and 15th in his men's Laser races on Tuesday to move to 12th overall.
And finally, Alison Young has 43 points after a 26th placed finish in her fourth race, leaving her 36 points adrift of China's Xu Lijia in the women's Laser Radial.
Slovenia off the mark in Rio
Away from the Britons, there has been gold-medal delight for Slovenia. Tina Trstenjak wins her nation's first medal in Rio with gold in the women's judo - 63kg.
Angelique Kerber 6-0 4-2 Samantha Stosur
Speaking of Konta, she will next play the winner of this tie.
A set and break to the good, Angelique Kerber is getting ever closer to an Olympic quarter-final.
Next up on Court One? Defending champion Serena Williams.
Just turning on? Where have you been?
Great Britain may have missed out on medals in three finals across canoeing, gymnastics and diving.
However, there have been British victories in Rio. Johanna Konta came from a set down to beat Russia's Svetlana Kuznetsova and reach the quarter-finals of the women's tennis singles.
You can watch what happened right here...
Luke Reddy
BBC Sport in Rio
This lot were briefly thrilled, chanting away and booing when Great Britain are in possession. Adam Dixon lashes GB level though and that fist pump is probably one of sheer relief.
The game pattern is obvious, men behind the ball for Brazil, Great Britain trying to use width to create space. Barry Middleton isn't flustered though, a cracking finish from just inside the area. That's why he's captain, leading the response.
Men's Pool A
Great Britain needed this. Barry Middleton's scuffed shot from the edge of the circle is well saved by the Brazil keeper, but Adam Dixon is on hand to squirrel away the rebound.
And now Middleton makes a sweeter connection to suddenly have GB in front. The party for the home fans was brief, but fun.
GB go into the second period 2-1 up.
So, Great Britain have gone in three finals today and come away empty-handed in each of them.
Siobhan-Marie O'Connor goes in the women's 200m medley in the wee small hours, but there's plenty more happening before then. Including...