Coco Gauff is 25-7 in three-setters at Grand Slams.

That's the third best record in the Open era (from a minimum 25 matches), behind Steffi Graf and Wendy Turnbull.

Coco Gauff won 11 of 12 points at the net, and hit 11 winners to Karolina Muchova's three in that second set.

The American stepped up, and her opponent could not follow. What will the deciding set bring?

Emily Salley
BBC Sport at Wimbledon

What a turnaround. When Coco Gauff lost the first set she headed off court with her head down, looking dejected.

This time, she struts to her chair with confidence.

And she doesn't even need a rest! The 22-year-old takes a brief seat before heading to the baseline to practice her serves while Karolina Muchova goes for a bathroom break.

Last night's 6-love-6 phone-in with John McEnroe is now out as a podcast, featuring man of the moment Arthur Fery.

You just need to search 'Wimbledon' on BBC Sounds to find it, or follow this link.

The second instalment of 6-love-6 is from 19:00 BST tonight on BBC Radio 5 Live - Call 08085 909693 to put your questions to John.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live

It's a complete copy and paste of the first set but the other way round.

Coco Gauff is playing such bold tennis and then making Karolina Muchova feel like she has to overplay.

It's incredible what confidence can do for you.

Coco Gauff, having played like she was frightened in the first set, is now knocking the ball about like she's playing in the park.

She holds to love and we go to a decider.

Image source, Getty Images

Anne Keothavong
Former British number one on BBC One

Gauff has stepped it up in every part of her game. The ball speed, the accuracy, the intensity.

That is what she does so well, time and time again. She is such a fighter.

That's the best point of the match! A multi-shot rally ends as Coco Gauff digs out a superb backhand near the net to return a seemingly unreturnable ball.

Muchova goes long, handing Gauff a shot at a double-break... but she can only find the net. Deuce.

But Coco Gauff is playing like a totally different woman to the first set, whether on the baseline or at the net she is finding her range. Muchova long again, double break secured.

Leon Smith
GB Davis Cup captain on BBC Radio 5 Live

It's been so impressive how Coco Gauff has turned around what was an awful first set.

Karolina Muchova's level has stayed the same but Gauff's level has gone all the way up in every department.

Karolina Muchova looks to raise her game to match Coco Gauff's improvement, and puts a lovely steered backhand into the corner of the court. Then she wins a slice-off, moving 15-30 ahead.

Gauff though maintains her resolve, forcing Muchova to send another backhand wide for 40-30 - before a mishit takes us to deuce.

A roar from the seventh seed as she executes a smash, then Muchova plants one in the net as the break is consolidated.

After one and a half sets, this has become a match worthy of a Wimbledon semi-final.

Image source, EPA

Tracy Austin
Two-time Grand Slam champion on BBC One

Incredible effort from Gauff. You have got to wonder about the shot selection from Muchova.

Going out wide to Gauff's favourite shot in the backhand and then to the dropshot. I think she felt the moment.

Leon Smith
GB Davis Cup captain on BBC Radio 5 Live

Coco Gauff is playing much better in this set and that's why this match feels like it is turning in her favour.

Coco Gauff has stepped up her level, and the control over her aggression, in this second set. She pounces on a loose Muchova shot with a powerful forehand - then Muchova veers wide, she is 0-40 on her serve for the second successive game.

Muchova saves the first, second... but not the third break point as Gauff slams cross-court with a two-handed backhand and roars!

At the ninth time of asking, Gauff finally converts a break point.

Image source, Reuters

Annabel Croft
Former British number one on BBC Radio 5 Live

Coco Gauff is being way more aggressive and she is controlling the ball better.

It just feels like she is putting more pressure on Karolina Muchova.

Her level has come up and it is going to be a battle.

Tracy Austin
Two-time Grand Slam champion on BBC One

Where were those forehands [from Coco Gauff] the rest of the tournament? Absolutely fantastic.

Having the confidence like that to commit to it.

A simple hold to love for Coco Gauff, her first of the match. She needed that.

Emily Salley
BBC Sport at Wimbledon

Coco Gauff covered her eyes and let out a massive sigh after missing that break point with a shanked forehand. Things just aren't clicking for her yet.

Image source, Getty Images