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Quick! Switch to BBC One to watch the rest of the tennis and what could be the last match of Andy Murray's career.

Simon Reed
BBC commentator on BBC Red Button

You can't write Murray and Evans off, we have seen what has happened in the last two matches but even these two are going to struggle now because they are being incomprehensively outplayed.

Sam Smith
Former British number one on BBC Red Button

I always say it's like sitting on a Volcano. Taylor Fritz is ultra competitive, loves representing his country and being a part of a team.

He enjoys being out on the road, and now he's twenty-six playing some of the best tennis of his career.

Oh dear. Another break for the Americans.

I fear Andy Murray's tennis career is very close to being over.

Image source, Getty Images

Simone Biles may not be done there in Paris, either. The American already has two golds to her name, but she's got three more opportunities to add to that in the individual finals.

She is in the vault final on Saturday (3 August) before the beam and floor finals on Monday (5 August).

She qualified top in the vault and floor finals and second in the beam. More medals seem certain to be on the way.

This could be over very quickly.

Tommy Paul and Taylor Fritz get the hold. They look far too good for Andy Murray and Dan Evans at the moment.

Simone Biles took to the floor needing a score above 13.867 to secure all-round gold.

Well, she obliterated that.

A sixth Olympic gold and ninth medal in total for the greatest women's gymnast of all-time.

Team GB's Ben Proud speaking to BBC One after reaching the men's 50m freestyle final: "I have never been in this position, it is very exciting.

"That race felt great, a semi-final always will as it is quite relaxed. We will see how the lanes get drawn.

"It's funny, not everything went right, but it is about finding that balance of what you can do well and what you can do better.

"Everyone is going to be in the same boat and there will be top class athletes on the outside lanes."

On his final thoughts on the block: "Nothing, everything who knows? You try to become present in the moment and you are there. Get rid of thoughts and let the body takeover."

Rebecca Adlington
Double Olympic gold-medal winning swimmer on BBC TV

Image source, Getty Images

Ben Proud has been on the team for so long and he just missed out on the medals at Rio and Tokyo Olympics.

He is in the best place of his career, he is strong and technically brilliant.

Sam Smith
Former British number one on BBC Red Button

That is an unbelievable return! Taylor Fritz is such an improved player from a couple of seasons ago.

Ah. Andy Murray and Dan Evans are in real trouble now.

A forehand from Taylor Fritz fizzes between the two Brits, who are left staring at each other.

That winner hands the Americans an early break.

The final of the men's 50m freestyle, featuring Great Britain's Ben Proud, Tokyo Games champion Caeleb Dressel and Australian Cameron McEvoy, will be on Friday at 19:30 BST.

No messing about from Taylor Fritz and Tommy Paul.

A straightforward hold to love puts the pressure back on the GB lads.

A little better from Kye White on his second run - he finishes third on this occasion, and now has eight points with two of three races completed.

He currently stands 10th in the standings, which would see him qualify for the semi-finals - the top 12 qualify automatically, while the next eight riders enter a "last chance race".

A repechage, as the rowing chaps would call it.

Jonathan Jurejko
BBC Sport at Roland Garros

Murray and Evans have lacked some of the energy which got them through the first set of their previous match on Tuesday.

But, after opening the second set here with a hold, there is a bit more pep in their steps.

The Brit-heavy crowd, which includes Murray matriach Judy - of course, is trying their damnest to lift their guys.

Amy Lofthouse
BBC Sport in Paris

Image source, Getty Images

Excellent from Ben Proud! He was in control throughout - there's a big puff of the cheeks from the Brit and a shake of the head as he realises he's the fastest qualifier.

That bodes well for the Brit's medal chances tomorrow...

A roar of delight from Andy Murray as they get a comfortable hold.

That's a much better start from the Brits, who had to wait until the fifth game to get on the board in the first set.

Andy Jameson
Commentator and former Olympic swimmer on BBC TV

Very quick!

21.38 that is an outstanding swim from Ben Proud - that would have won silver at Tokyo Olympics.

Proud looked very cool and unfazed.

Team GB's Ben Proud and Australia's Cameron McEvoy are tied for first in this second semi-final.

Italy's Leonardo Deplano is third, but Frenchman Florent Manaudou can only manage fifth place.

Mark Foster
Former freestyle world swimming champion on BBC TV

It's all about consistency and it is about performing at your best at the right time.

Ben Proud does about 34 strokes in the sprint. It is about turnover.