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.

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

Very graceful from Karolina Muchova, a smashed winner while almost pirouetting from the force exerted.

But a failed attempted at serve and volley, then a mistimed backhand slice into the net, means Muchova gives up deuce on her first service game of the second set.

A nicely played backhand volley earns Gauff a break point, both she and her box looking very excited. However she spurns the next point with a mishit long off her frame.

Muchova holds, and continues to look unfazed on her Centre Court debut.

Tracy Austin
Two-time Grand Slam champion on BBC One

It was not surprising to see Coco Gauff taking a toilet break after 39 minutes, just giving herself time to think about what happened in the opening set.

For her first time on Centre Court, Karolina Muchova didn't seem to be overwhelmed by the moment, the occasion and the history of the court - it is the most magical court in our game.

Coco Gauff opens serve in the second set. She lost the first set in both her previous matches, and needs to complete the hat-trick to keep her Wimbledon dream alive today.

And back to back aces to secure the first game indicate that we may see more fight from the American here.

Image source, Reuters

Emily Salley
BBC Sport at Wimbledon

Coco Gauff threw her towel over her shoulder and stormed off court. A bathroom pep-talk very much needed.

Just 39 minutes for that first set, where 12 unforced errors from Coco Gauff prove costly.

Gauff has left court during the break, looking deeply unimpressed with herself. Karolina Muchova has stayed outside, an ice pack clutched to the crown of her head.

Image source, PA Media

Coco Gauff may lack consistency, but she can hit some splendid shots. A powerful hit puts her 15-30 ahead as Karolina Muchova attempts to serve for the first set.

But Muchova draws oohs from the crowd as a winner down the line is shown by the video replay to have just clipped the chalk, then Gauff goes long to give the Czech a set point.

And sealed with an ace! Superb from Muchova so far.

Image source, EPA

Tracy Austin
Two-time Grand Slam champion on BBC Two

The forehand from Karolina Muchova has always been a dangerous shot but it has improved because it is more reliable.

Coco Gauff belatedly finds her serving range, sending down a couple of 120mph-plus efforts. She then executes a lovely backhand slice and pumps her fist.

But Muchova is again a brick wall, winning all the rallies and showing far more control over her strokes. She forces another deuce on the Gauff serve.

Then it's shot of the day so far from Gauff! A brilliant stunned volley that bounces twice near the net before Muchova can rush in to meet it - however she follows it with another wayward effort. Back to deuce, and story of the day so far for Gauff.

Eventually Gauff sees it through, breaking Muchova's run of five straight games.

Marcelo Arevalo and Mate Pavic have won the first set of their men's doubles semi-final against Kevin Krawietz and Tim Puetz on Court One.

Serve has been dominant so far, with no breaks in the opening 12 games.

Krawietz and Puetz won six straight points after going 4-0 down in the tie-break, but then missed three set points before Arevalo and Pavic won it 10-8.

Great Britain's Henry Patten features in the second semi-final alongside Finnish partner Harri Heliovaara, which immediately follows this match.

This match and all other courts at Wimbledon are available to watch uninterrupted on the BBC iPlayer.

Bailie in Andover: There's not been Muchova fight so far! I'll close the back door on my way out.

We see what you did there...

An initially great response by Coco Gauff to falling a double break behind, suddenly she is 0-40 up on Muchova's serve.

But Muchova remains calm, saving the first two break points then pulling Gauff back and forth across the court before a backhand volley secures deuce.

Gauff is the picture of frustration as she concedes advantage with a shot into the net, the goes long as a huge change goes begging.

Image source, Getty Images