Pat Cash
1987 Wimbledon champion on BBC Radio 5 live sports extra

"Murray is in a great position. It's often tricky when you break so early in a set because you've momentum and you usually want momentum towards the end of the set. But Djokovic is looking tired, grumpy, possibly hungry and Murray is pumped up."

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Suddenly there is a gale in Andy Murray's sails!

The Scot tears to 0-40, spitting winners off his forehand wing. Novak Djokovic looks like a little boy lost out there, unable to deal with the pace and power suddenly. And he twangs into the tape to concede on the first break point.

I think Djokovic would like the umpire to call it a day and send them home for the evening to return on Saturday.

But they like a revolution in France and the crowd won't allow an early end to their entertainment.

Pat Cash
1987 Wimbledon champion on BBC Radio 5 live sports extra

"Murray is moving well and hitting the ball confidently. All those matches on clay this summer boil down to this - the footwork and pressure on the clay is priceless. Djokovic looks the one who is a little rattled at the moment."

The mojo in this match is ebbing and flowing all over the place.

Novak Djokovic racks up three break points as Andy Murray swats a forehand into the net under little pressure.

A lovely, cushioned volley at the net recovers the first though.

This is like two professional pong players. The ball bats back and forth between the two of them for an eternity before Novak Djokovic plants into the net on the 33rd stroke for 30-40.

A tired-looking forehand, halfway up the net, from Djokovic then allows Murray to the sanctuary of deuce.

Djokovic is now complaining about the failing light, claiming he cannot pick up the ball as Murray makes good his escape.

Image source, EPA

A pretty regulation hold from Novak Djokovic. Andy Murray shaved just a point off that game.

That was just what Djokovic needed to steady the ship after Murray torpedoed him late in the third.

It was the Corporal Jones of service holds. "Don't panic!"

Jonathan Cook: That's why I've support Murray all these years. That man has some fight in him!

Sara Wadee: I stood up and Murray broke. I remained stood up and he won the set. Therefore I will be standing until the end.

Kris Holland: Tell you what, if Murray goes on to win this then it has got to be the comeback of his career, surely?!

Piers Newbery
BBC Sport at Roland Garros

"Djokovic heads off for a medical time-out and Murray nips away too, pretty standard practice after two sets these days, although it remains to be seen if Djokovic has an issue that could affect the match.

"Murray prowls the baseline waiting for his opponent to return, letting the crowd - and the umpire - know that he's ready. Djokovic returns in a fresh pair of shorts and he has twice managed love sets to beat Murray this year, so expect him to be firing on all cylinders again."

Someone better go and check the cubicles for Novak Djokovic. Or put out an a missing person alert. He has been gone some time.

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Andy Murray has a word with umpire Pascal Maria before finally the Serb emerges with a fresh pair of shorts. Who knows what happened back there.

We are ready to go.

This is a lengthy lay-off.

Andy Murray nips to the loo himself, but Novak still isn't back on the stage. Murray gets tired of waiting on his chair and heads to the baseline to prepare to receive serve.

Pat Cash
1987 Wimbledon champion on BBC Radio 5 live sports extra

"Murray had to wrestle defeat - he was looking it in the eyes with a couple of breaks down in that third set. But Djokovic missed a couple of shots and Murray thought 'if I hang in there I've got a chance'.

"As soon as the wind started blowing Djokovic's footwork deserted him. Murray played some good tennis but Djokovic had the chance."

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Right, Murray is four points away from the set. Any nerves that he might have had brewing during the changeover ferment a little stronger as the French Open crowd decide now is the time for a Mexican wave.

Finally they settle down and Murray rattles through in style, holding to love.

Djokovic stabs into the net for 30-0, before a rocket ace flashes past for 40-0 and then he returns long to concede the game.

That was a rotten game from the top seed and he trudges off court to have a word with himself and a bathroom break. Breaking up Murray's momentum will be a happy side-effect.

Piers Newbery
BBC Sport at Roland Garros

"If that spinning, flying, crashing forehand winner from Murray didn't jolt everyone out of their sultry evening stupor, the roar that followed his next crushing winner must have.

"The crowd are certainly behind the Scot, which is the sort of thing that can get to Djokovic - he has already had a couple of run-ins with the locals. They are after a contest, and they might get one if Murray can serve this set out."

Paul Thompson: The Scottish fire is burning! Fantastic spirit from Murray, Djokovic on the ropes for the first time...

Andrew: Have we a match on our hands here? This really is the highest quality sport.

Shohidur Rahman: And there we saw Djokovic's only weakness, his anger when the crowd doesn't support him.

Pat Cash
1987 Wimbledon champion on BBC Radio 5 live sports extra

"Great game from Murray, but slack stuff from Djokovic. He almost panicked, decided to come into the net and he should know better. He has to weather the storm and set it up for Murray to have a go. But he teed him up."

If one shot could change a match, that could be it.

Fifteen-love down, Andy Murray chases back to recover a lob, spinning to unleash a terrific forehand winner. The crowd go ripe bananas.

Murray demands more noise. They deliver more decibels. A superb forehand down the line. 15-30 and even more noise.

Djokovic nods knowingly, but that forehand into the net gives Murray 15-40 and his first break points of the match.

And he has a 100% conversion rate! The ball sits up invitingly and Murray hammers it away to break.

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Andy Murray must hold serve here. As simple as that. If he doesn't then it is au revoir to Roland Garros until 2016.

A heavy forehand from Djokovic, after he cagily hits a smash down the middle to set up a rally, scoots past the baseline to the delight of Murray. The Briton leads 30-0. So far so good.

Murray smashes down a seventh ace of the match, swiftly follows that up with another, and that means we go on...

Stewart Mills: I am not Murray's biggest fan but to say he is a million miles away from Djokovic is pretty laughable. Small margins...

Laura Chamberlain: Murray is better than this, but is he better than Djokovic? In the psychological dept, it's a resounding NO.

All quiet on the Western front in a strange old game

Novak Djokovic gets a serve to kick up nastily as he advances to 40-15 without too much bother.

Andy Murray is then chuckling away to himself at the end - a wry philosopical laugh at his own situation and Djokovic's brilliance or something shouted from his camp perhaps - and fails to chase down a drop-shot that was well within his reach on the final point.

Image source, @RolandGarros/Twitter

Eighth seed Stan Wawrinka on beating Jo-Wilfried Tsonga to reach his first French Open final: "I've been playing really well since the beginning of the tournament. I'm surprised and really happy with how I've been playing."

On Sunday's final against either Novak Djokovic or Andy Murray: "We're both going to be nervous, that's a fact. I will have to focus on myself and try to bring my A-game."

DC, Dorking: Goodness, people talking about total domination with their crystal balls. Nadal will come good again and young players will emerge. Relax everyone.

Martin, Fareham: If Djokovic can play the rest of the year at this level then the calendar Grand Slam is probable rather than possible.

Tom, Whitstable: In 2011 Djokovic was just as dominant and went 6-0 against Nadal. Rafa came back, so will Andy. Have faith people.