We're still waiting on that next race in the men's sprint final. It could be another 10 minutes or so. In the mean time, viewers of BBC TV are getting a pretty good view of Sir Chris Hoy's biceps. Just imagine being cuddled by those. You'd feel safe. 

Image source, Reuters

Team GB's Savannah Marshall has made it through to the quarter-finals of the women's middleweight for the second successive Olympic Games.

She lost the first round but upped the tempo to take rounds two, three and four before the fight was stopped.

She will face Dutch boxer Nouchka Fontijn on Wednesday at 19:15 BST.

It's a break-fest on Centre Court.

GB's Andy Murray secures his second break of the first set to lead 3-1 against Argentina's Juan Martin del Potro in the gold medal match.

There's been just one hold of service so far - that coming from Murray.

Lost his Olympic title last night, lost his phone tonight...

Anna Thompson
BBC Sport in Rio

Becky James was watching team-mate Katy Marchant and clapped her thighs in appreciation as she beat Canadian Monique Sullivan to advance. 

You don't often see any reaction from the riders to fellow cyclists as they are so focused on their own job at hand. Shows James is relaxed and in a good place.

GB's Andy Murray went a break up in the first set of his gold medal match against Juan Martin del Potro, but the Argentine has broken back and trails 2-1 on serve.

Those first three games took 27 minutes to complete. It's attritional stuff. 

Best of five sets, in case you were unaware.

Great Britain's Grace Reid, who won European bronze earlier this year, is holding her own in the women's 3m springboard final. Watch all of her dives so far... 

Remember this? Great Britain were also already secured a gold and silver in the men's sprint event at the 2008 Olympics in Beijing.

Watch as Chris Hoy defeated team-mate Jason Kenny to become the first Briton to win three gold medals at one Games.

Anna Thompson
BBC Sport in Rio

I was enjoying the breeze created by the omnium riders as they raced 60 laps as it's seriously hot in here.

It's hard to read Mark Cavendish's face when he returns to the track centre after his sixth place. He doesn't look particularly angry, nor does he look pleased. So let's say satisfactory.

Defending champion Lasse Norman Hansen will be tough to beat but Cavendish did finish ahead of Elia Viviani.

Luke Reddy
BBC Sport in Rio

At the risk of tempting fate, Juan Martin del Potro has the body language of a man digesting a huge Sunday dinner. Sedate.

Image source, .

Andy Murray, looking to become the first man to win Olympic singles tennis gold on two occasions, has made a good start against a sluggish Juan Martin del Potro. A break at the first opportunity.

Katy Marchant also does the bizo, meaning Great Britain has two riders safely through to the next phase of the women's sprint.

A Bowker: Kenny dominated that one!

Ali Burr: Absolutely loving the cycling at this years championships. Skinners V Kenny dual!

Jen de Polo: Jason Kenny. Class in motion.

There will be a little wait for the second race in that Kenny-Skinner final. To fill the time, Becky James has just breezed through in the women's sprint. 

Image source, Sport England

As much as track cycling's gripping to watch, it's even more gripping to try.  Find out how to have a go with Get Inspired's guide.

Chris Boardman
Olympic cycling champion on BBC TV

Callum Skinner lost that race with a lap to go and it was a big tactical error. Jason Kenny did not panic and used his height so he could accelerate down the backstraight. That was a victory for experience.

Victoria Pendleton
Olympic cycling gold medalist

Kenny was really stalking from the back and when he pressed on the peddles it was like a turbo.

You could see he had so much speed.