Harry Poole
BBC Sport at Wimbledon

There are a significant amount of empty seats on Centre Court, and in the Royal Box too, for the second match of the day.

Early developments in Atlanta may mean a few begin returning soon, though...

24th seed Joao Fonseca has just converted his third break point of the third set to break Jesper de Jong.

The Brazilian teenager is two games away from back-to-back third-round appearances at Wimbledon.

Mirra Andreeva is finding her feet in this match now.

Barbora Krejcikova was tested in her last service game, which lasted over 10 minutes, and now Andreeva finally makes a break point count as she scoops a forehand winner down the line after doing magnificently to keep the ball alive.

Game on.

Coco Gauff builds on that momentum to lead 30-0.

At 40-15, Gauff steps up to the net and whips a lovely cross-court winner for the hold.

Pressure back on Solana Sierra.

Tracy Austin
Two-time Grand Slam champion on BBC Two

Coco Gauff is so intelligent. She understands that Solana Sierra is going to be feeling so many nerves right now.

She just made sure to get a lot of balls back in play. She also played a lot of slices where Sierra had to create her own pace.

It isn't new to see Gauff wiggle her way out of predicaments. She is an incredible competitor.

Sam Smith
Former British number one on BBC Two

Coco Gauff has a lifeline...

And she survives! We are back level in this deciding set on Court One.

Image source, Getty Images

Solana Sierra attempts to slice from just in front of the baseline and it falls agonisingly short.

Coco Gauff breaks and we're back on serve.

On Court Two, Jessica Pegula has recovered from losing her opening service game to find herself a break up against Sara Sorribes Tormo.

The American fourth seed immediately broke back in the third game of the opening set before racing into a 0-40 lead on Sorribes Tormo's next service game and converting her second break point.

Solana Sierra goes big on her backhand but it falls short. 15-15.

A double fault makes it 30-30. This is tense.

Ah. Sierra sends it wide and hands over break back point.

Sam Smith
Former British number one on BBC Two

It has been a treat of backhands out here this afternoon!

Coco Gauff might be ruing all of those missed opportunities, but she is hanging on here.

We can't forget she had chances to break right at the start of the second set after winning the first set. She's had the better of the opportunities in this deciding set, with six break points coming and going.

Coco Gauff opens up a 30-0 lead but Solana Sierra gets level at 30-30 with a stunning backhand.

Gauff responds with an ace before sealing the hold.

Over to Sierra.

Solana Sierra gets the hold to 15.

Coco Gauff will serve to stay in the tournament.

Tracy Austin
Two-time Grand Slam champion on BBC Two

In the two games before this one, Solana Sierra had backed off a little bit and made a couple of unforced errors.

But she decided she was going to go for it and the aggression seemed to almost free her up. She had just enough spin on her shots for control and her conviction really paid off.

Wow!

Coco Gauff double faults but there's a review and the decision is reversed - the second serve just kisses the line. 40-15.

It matters little, though, as Solana Sierra gets the break on the next point.

Very quickly it's Coco Gauff under some pressure.

Three break points for Solana Sierra.

A huge hold in the deciding set.

Solana Sierra hasn't displayed a lot of emotion in this match but she ensures everyone can hear how delighted she is.

Image source, Getty Images

Mirra Andreeva has two break points in the opening game but Barbora Krejcikova fights back well to secure the hold.

The Czech follows that up by earning a break point of her own in the next game and makes it count when Andreeva hammers a forehand long.

Good start from the 2024 Wimbledon champion.

Sam Smith
Former British number one on BBC Two

Well it has been very different for 22-year-old Solana Sierra coming into this year's Wimbledon as a direct entry with points to defend.

She has the worry of her ranking maybe slipping down if she doesn't cover the points from 12 months ago. She is also trying to beat a top 10 player for the very first time in her career - and she is in with a shout here.

Coco Gauff fails to take the first and Solana Sierra ensures the American won't take the second - forcing a forehand deep into the corner which is returned into the net.

Is this the moment the match turns?

Solana Sierra slices a forehand wide to hand over two break points.