Britain's James-Andrew Davis sped into an 8-2 lead over Russia's Timur Safin in their last-16 contest, but they're all level now at 10-10 in the third period. Topsy-turvy stuff.

Luke Reddy
BBC Sport in Rio

What a try for Amy Wilson-Hardy. 

She's raced from her own half up the left wing and the power on display is immense. Upright, technically easy on the eye running, you can hear the moment when the crowd realise she's going all the way.

Amy is one of the youngest in this GB team but it doesn't look like she's a bit concerned.

That's 10-0 to GB women - fourth seeds - against Canada - third seeds - at the break. Time for a huddle.

Image source, .

And a bad week just got a bit worse for Lizzie Armitstead.

She had a technical issue, so had to drop off the peloton to get it sorted. Everything is fine but she's exerting energy to catch up and make up the gap.

Oddly, her team-mate Emma Pooley is the one at the front of the peloton making it go quite quickly and making it harder for Armitstead. The other GB rider Nikki Harris is stuck in the middle, unsure whether to wait for her lead rider.

Amy Wilson-Hardy runs almost the length of the field to grab what could be a crucial second try in first-half stoppage time for Britain. "This would be a big, big turn up if Team GB keep playing this way," says Sir Clive Woodward.

Image source, Getty Images

It hasn't been the greatest week for world road race champion Lizzie Armitstead.

News emerged that she successfully fought an attempted ban from UK Anti-Doping for three failures regarding the testing system.

The Court for Arbitration in Sport agreed that the first of the three strikes should not have counted - and therefore Armitstead is free to race today.

 "It hurts me to consider anybody questioning my performances," she said in a rather robust and transparent statement on Wednesday.

Today, she can cast all those questions aside by going one further than four years ago and winning gold on the Copacabana.

That's a comfortable victory for Donnelly - Zohir Kedache looked a little out of his depth against someone of the Irishman's class, and although he was happy to throw punches, he didn't land many.

Job done for the 27-year-old though, tougher challenges will await.

Luke Reddy
BBC Sport in Rio

Image source, .

Great Britain's first real test on paper in the shape of Canada, who looked good in patches yesterday. My focus on the pitch is briefly taken by events off it as some French fans arrive in somewhat strange outfits.

There's a little more breeze in this stadium now and that may help Great Britain slightly. Yesterday their players were bright red in the face when mingling with media.

Both these teams are likely to progress and play a quarter final later, so how hard do you push now?

Alice Richardson answers the question as she breaks through to score. Go hard or go home.

Image source, .

Britain's women have got their final pool match under way - and they've made a decent start, scoring an early try to lead Canada 5-0.

The winner will top the group before the quarter-finals.

You can watch it here.

Defending champion Serena Williams is about to kick off her campaign on centre court against Australia's Daria Gavrilova.

Andy Murray, of course, will follow a little later on...

Sara Orchard
BBC Radio 5 live

Awaiting official confirmation from GB Hockey but I understand that 28-year-old forward Alistair Brogdon suffered a fractured finger yesterday in their 4-1 loss to Belgium. 

Despite having had it re-aligned he can't hold a hockey stick. It looks as though his place will be taken by 32-year old Wimbledon-club teammate Simon Mantell when they play New Zealand later today.

Mantell is a travelling reserve and will officially take Brogdon's place, meaning Brogdon's Olympic Games will be over.

James-Andrew Davis is about to take on Russia's European champion Timur Safin for a place in the quarter-finals.

Davis beat Safin on his way to his own European title in 2014 though.

Here we go.

Richie Woodhall
Former world champion in Rio

I’ve watched Donnelly in a couple of fights over the last couple of years and he’s a clever boxer. 

He waits, allows his opponent to come onto him.

Sure enough, the Ireland man has taken the first round from Algeria's Zohir Kedache on all three cards without exerting himself too much.

Chris Boardman
Olympic cycling champion on BBC TV

Unlike the men's race this won't be won largely on the climb. The wind will have a real impact on this smaller, more diverse field, and already the riders are positioning themselves to cope with the crosswinds.

Great Britain's Emma Pooley is the dark horse for me. I hope she isn't pushed into service for Lizzie Armitstead too much because I'd like to see what she can do. It was this course that brought her back from retirement.

Sybil Disobedience: All these sports people are making me feel like a total slob. *eats homemade shortbread* 

Can we get in on that shortbread action, Sybil? I'll stick the kettle on

Aimee Lewis
BBC Sport in Rio

Image source, .

Brazilian yellow dominating in the Olympic Park, as you'd expect, but it's more siesta than samba this afternoon. It's as slow as, well, a Sunday afternoon. 

It tends to get livlier in the evenings, as is the Brazilian way. A family from Rio kindly stop to pose for a picture before making their way to the basketball. They'll be there all day and are, naturally, looking forward to it. 

British fighters Galal Yafai, Joe Cordina and Lawrence Okolie all progressed on the first day of boxing at Rio 2016.  

Today we'll be seeing Josh Buatsi (third from left in the photo below) compete in the men's light heavyweight category. 

He's up against Uganda's Kennedy Katende in his round of 32 bout at 17:00 BST - with the winner going on to face Elshod Rasulov of Uzbekistan.

First, Ireland's Steven Donnelly is fighting in the welterweight round of 32, in a fight which will start imminently. Follow that here.

Image source, PA

As the women coast along the road next to Ipanema beach, the palm trees rattling in the wind, we can take a look at the 136.9km course.

If you saw the men's race yesterday, you can expect much of the same. It's the exact same route, but with fewer laps of each of the circuits.

So there will be two laps of Circuito Grumari, including two climbs and a bone-jangling cobbled section, and then just one loop of the final Circuito Vista Chinesa.

It was the climb to Vista Chinesa, and particularly it's roller coaster descent, that caused chaos in the men's race.

The women only tackle the downhill once, but it's in the finale and will be very nervy.

Meanwhile, Britain's track cyclists have been hit hard by the severe wind causing various delays around the Rio grounds...

Luke Reddy
BBC Sport in Rio

Image source, Getty

A reminder that Team GB's women play their final sevens pool match at 16:30 BST. They should be through regardless of the result against a good Canada side.

However, I'm told that they have never played a big tournament where they've played a pool match before a knockout game hours later. That will happen today as any quarter-final will come at around 22:00BST or later.

So how do you manage it? Rest a player or two? 

Ill be there at the stadium for their pool game and will take a look at how springy their legs seem.

Image source, getty

Germany's Dustin Brown has been forced out of his first round match against Brazil's Tomasz Bellucci with a rolled ankle.

Next up on the main stage is women's world number one Serena Williams against Daria Gavrilova.