After all that hard work for Cameron Norrie, Daniil Medvedev immediately puts the spotlight back on the British number two's serve with a hold to love in 80 seconds.

What a game, and what a crucial hold that could be for Cameron Norrie.

After a seventh deuce, having come through four break points, the Briton gets over the line.

What do you mean it's only 1-0?!

We're 11 minutes into the fifth set... 10/10 entertainment.

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Olivia Gadecki gets on the board by breaking Coco Gauff's serve and then holding for the first time.

Gauff has let some unforced errors creep into her game, but she is still on top and has got that break cushion.

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Annabel Croft
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds

He is certainly looking a bit more energised than he did in that fourth set.

He has brought the level once again, the bathroom break seems to have paid off. He just looks a different character once again.

This first game is going to be very crucial for Norrie, after being broken early in the fourth set.

Stunning drop shot from Daniil Medvedev after a series of powerful groundstrokes. There's nothing Cameron Norrie can do.

A third break point needs to be dealt with, and then a fourth.

But Norrie is still hanging on!

Russell Fuller
Tennis correspondent on BBC Radio 5 Sports Extra and BBC Sounds

Cameron Norrie has played a lot of matches recently, but they obviously haven't been of this length or over five sets. It is very difficult mentally.

He had managed to do what he had never done before against Daniil Medvedev by winning two sets but the nature of that fourth set, with Medvedev winning 16 points in a row and Norrie only taking eight points in total, will have been very damaging psychologically.

Norrie is clearly going to be very tired from the word go in this fifth set.

Great fight from Cameron Norrie. The Briton sees off a second break point - but the players can't be separated for now as we enter a fourth deuce of the game.

This really does feel massive for Norrie now.

Daniil Medvedev demonstrates his sky-high confidence levels with a wonderful drop shot to stay in tough on Cameron Norrie's serve, before setting up an early break point opportunity.

Norrie desperately needs to resist here - and he rises to the situation.

Three hours on the clock. A rollercoaster four sets behind them.

It is Cameron Norrie who will serve first in the fifth as he searches for a way to disrupt Daniil Medvedev's rhythm.

Cameron Norrie exits the court to clear his mind before trying to reset before the fifth set.

Just three winners compared to eight unforced errors for the British number two in that one-sided fourth set.

What has he got left in the tank?

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Annabel Croft
Former British number one on BBC Radio 5 Sports Extra and BBC Sounds

It does feel like the whole match has just hit a lull, doesn't it?

Even the crowd have gone a bit quiet. You would think they would be a bit raucous wanting a fifth set, almost like a football crowd, but they have kind of lost energy as well.

It's like the crowd have gone into a bit of a trance...

As has long appeared inevitable, we are off to a decider.

Cameron Norrie was in total control at two sets up, but Daniil Medvedev has flipped the momentum and absolutely dominates the fourth to remain on course for an epic comeback.

British pair Julian Cash and Lloyd Glasspool have eased through their first round match against Rinky Hijikata and Miomir Kecmanovic in the men's doubles.

Cash and Glasspool were stunned in the first set, with Hijikata and Kecmanovic claiming a break of serve at 3-3 and then maintaining control to see out the opener 6-4.

But the British sixth seeds fought back with back-to-back sets on court four to storm through to the second round 4-6 6-2 6-3.

Elsewhere in the men's doubles, fellow Brits Joe Salisbury and Neal Skupski are currently in action on court five.

The eighth seeds have already raced through the first set 6-2, and are leading 5-4 in the second set despite an early break of serve.

World number two Coco Gauff is in action over on Court Philippe Chatrier.

The 21-year-old American has been on top form during the clay-court season, but she has missed out on a title after losing in the final at both Rome and Madrid.

She's enjoying a perfect start against Australia's Olivia Gadecki, who has just double faulted to drop serve for a second time.

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That's a huge relief for Cameron Norrie.

He avoids being beaten 6-0 in the fourth set with a much-needed hold of serve.

Now Daniil Medvedev will serve to take us to a fifth.

Phew. Cameron Norrie finally ends the streak of points against him - after a 16-point wait to do so - as he looks to steady himself on serve.

Another unforced error gives Daniil Medvedev hope at 40-30, and Norrie's attempts to avoid being served a bagel in this set must go on as the 11th seed reaches deuce.

That is now 15 unanswered points for Daniil Medvedev.

Yet another hold to love puts him 5-0 up and we look destined to go the distance Court Simonne Mathieu.

A crazy, crazy momentum swing in this match. Cameron Norrie looks completely stunned.

The enforced errors are seeping in for Cameron Norrie now.

Medvedev's run of points extends to 10 as he sets up three more break points on the Britons' serve, and 11 with a backhand winner to move 4-0 ahead as he looks to quickly take this to a decider.

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A second hold of serve without reply for Daniil Medvedev at the start of this set.

That is now 12 of the past 13 points which have been won by the Russian.

It already feels like a long way back for Cameron Norrie in this set with Medvedev looking the more solid player.

Now it is Cameron Norrie who needs to find an extra gear.

Daniil Medvedev is in the groove and the British number three has fallen flat as he faces up to two break points after a double fault.

Medvedev only needs one. The 11th seed is on the move.