"Come on!"

Norrie's almost there. Tiafoe clatters his return long.

Another twist? At 30-15 Tiafoe finds the line with his backhand. 30-30.

All the energy is coming from Norrie's side of the court. Two big serves take him to 30-0.

He'll be buzzing.

Just a game away now.

Another hold for Aryna Sabalenka with Marie Bouzkova just unable to put her under any pressure.

Gary Rose
BBC Sport at Wimbledon

A gigantic bee just tormented a section of the Court One crowd before zipping off into the sky, satisifed its work was done. That's been about the only time anyone has taken their eyes off this encounter, which has ebbed and flowed throughout with Cameron Norrie and Frances Tiafoe both having their moments.

Norrie has just had his again now, giving himself a talking to after briefly letting slip a chance to break but then sealing it at the second attempt.

Harry Poole
BBC Sport at Wimbledon

Fans are flocking to court four now for the upcoming men’s doubles match featuring three Brits, as Dan Evans teams up with Henry Searle against defending champions Henry Patten and Harri Heliovaara, of Finland.

There should be a great atmosphere for this one as the British fans gather around the small arena.

Warm applause greets the players as they’re escorted through the crowds and take the steps down on to the grass.

Boom! Have some of that! Norrie hits a mahoosive forehand winner down the line to break to 30.

He'll serve for the set.

Kim Clijsters
Four-time Grand Slam champion on BBC Radio 5 Live and BBC Sounds

Image source, Getty Images

Aryna Sabalenka is really reading the serve better, getting clean hits on the return.

At the end of the first set she really got into a groove and hasn't lost that rhythm, she's serving and returning well, everything is a little bit deeper and to the sideline. She's moving a little bit better and her stance is always in the right position now.

Impressive hold from Marie Bouzkova.

She isn't going to outpower Aryna Sabalenka but uses the angles cleverly to move the Belarusian around the court.

There's a little fist pump after putting a backhand winner away before the game is secured when Sabalenka dumps a forehand into the net.

Ah, a waste. Norrie slaps a return long. 30-40.

Wow, brutal return from Norrie just after he'd plucked a winner at the net. 15-40 on Tiafoe's serve.

Another chance for the Briton...

There we go, much better from Norrie who stops the rot and holds to 30 with a blistering first serve.

Nuno Borges is surging ahead in this first set.

Billy Harris' serve lets him down before Borges finishes his service game with an ace to consolidate the break.

The Brit has some work to do here.

Aryna Sabalenka is looking to get this done quickly now.

She's moved through the gears and Marie Bouzkova has no answer.

The world number one is taking the aggressive option every time, coming to the net with far greater frequency and putting away volley after volley.

It's looking like a real uphill battle for Bouzkova.

We've already had one British player get through to round three today - and Sonay Kartal did it in some style...

And just like that we're back level in the third. Three aces in a row seals the deal for Tiafoe.

Aryna Sabalenka has turned up the heat.

"Let's go!" she shouts after winning the first point of the game before nailing another overhead smash to bring up three break points.

The pressure finally tells on Marie Bouzkova and she finds finds the net to give Sabalenka the first break of the second set.

Norrie goes for a drop shot but it falls wide. We're back on serve.

Blink-and-you'll-miss-it service game for Aryna Sabelanka.

The top seed comes in behind a big first serve and puts away the overhead smash with conviction to hold to love.

An immediate break-back chance as Norrie hits a loosener at 30-30.

Tiafoe licks his lips.