That's just the tonic for Solana Sierra.

After staving off two break points in the previous game, Sierra gets a break to love.

Game on.

Errors continue to invite pressure on Nuno Borges' serve but at 40-30, he finds a hefty first serve which Jannik Sinner returns long.

Coco Gauff finds herself in a spot of bother.

Three break points for Solana Sierra.

• Aryna Sabalenka and Naomi Osaka were straight-set winners in their respective matches to book places in the third round of the women's singles.
• French Open finalist Flavio Cobolli won his first-round match against Mariano Navone, which was unable to be completed last night, in four sets.
• Dan Evans' career came to an end with a men's doubles defeat alongside fellow Briton Henry Searle.

Naomi Broady
Former British player on BBC Radio 5 Live

A bit of a topsy-turvy set really after such a quick start from Coco Gauff and then the break-back from Solana Sierra.

I would love to see Sierra just try to keep her ball shooting through the court a little bit more. It is an adjustment that you need to be quite conscious about making early on in the grass-court season, but it would be nice to see her keep it a bit lower especially when she goes into the forehand.

She actually does it quite naturally on the backhand when she steps through on the front leg with her backhand up the line. That's when it skids through and tests the forehand grip of Gauff.

Beautifully done by Solana Sierra.

After getting to advantage, Sierra sends Coco Gauff wide with her serve before whipping a backhand winner into the opposite corner.

Far from a routine hold but it gets Sierra on the board in the second set and prevents Gauff from winning a fourth successive game.

Ace. Ace. 30-0.

Nuno Borges lights up the game with a scrambling backhand which nicks the outside of the tramline after just evading Jannik Sinner's reach but the Italian holds to 15.

Solana Sierra saves the first.

Ohhhhh. Coco Gauff races to the net and looks perfectly placed to seal the break but she loses her footing ever so slightly and the ball drops short.

How frustrating!

John McEnroe
Three-time Wimbledon singles champion on BBC One

Borges has done well, he's mixed things up and thrown a lot of different things at Sinner. He has kept Sinner alert.

He had his chances, but it has tilted heavily in Sinner's favour now.

Solana Sierra is back on serve and desperately needs to halt the growing momentum from the other side of the net.

It's not playing out that way, though, as Coco Gauff continues to grow in confidence and earns two break points.

Nuno Borges remains in touching distance.

Annabel Croft
Former British number one on BBC Radio 5 Live

Borges is quite emotional, isn't he? He has quite a nice disposition and a good bit of composure on the court, but he also shows his disappointment when things aren't going his way.

You can see why Jannik Sinner is able to pick up psychologically on things that aren't quite going Borges' way.

Image source, Getty Images

Ah.

It's not as straightforward as it once looked as Solana Sierra picks up a couple of points.

But Coco Gauff gets the job done at the third attempt. The American is halfway there.

Down advantage, Jannik Sinner creams a flat forehand return onto the baseline. Nuno Borges was stranded in the opposite corner.

Coco Gauff looks full of confidence now as she closes in on the set.

An ace takes Gauff to 30-0 before reaching 40-0 and earning three set points.

A timely first serve for Nuno Borges. Jannik Sinner looks miffed as he puts his backhand into the net.

This feels ominous.

Jannik Sinner's box applaud as Nuno Borges, back-pedalling, bats the Italian's return off his toes for a cross-court forehand winner. Borges remains expressionless. 15-all.

He doesn't contain his emotions for long, letting out a passionate "YES!" after burying a forehand for 40-30 before showing some frustration when one flies long.

And again!

On second serve, Solana Sierra goes to Coco Gauff's backhand and the Argentine scoops into the net.

Gauff will serve for the set.

Brazilian 24th seed Joao Fonseca didn't take long to wrap up the first set of his second-round match against Jesper de Jong on court three.

He will face Novak Djokovic in the fourth round - if both progress through the draw that far, of course.

Image source, Getty Images