Tracy Austin
Two-time Grand Slam champion on BBC One

Pavlyuchenkova has tried a few drop-shots so far, to no avail.

There are so many variables in this match. Kartal looks great so far, but how well will she handle winning three major matches in a row? She is so good, but sometimes she can make a lot of mistakes. You never know which player is going to show up.

Now the smile is plastered across Sonay Kartal's face after sprinting to the new to meet a drop shot and return a winner. 0-30.

How she managed to slam on the brakes to avoid touching the net is beyond me!

Anastasia Pavlyuchenkova puts a forehand long and Kartal is looking at a double break.

Image source, Getty Images

Sonia Oxley
BBC Sport at Wimbledon

If you're watching and thinking that Sonay Kartal's service motion is a little unorthodox, you'd be right.

She has had to adapt it following a shoulder injury. She says she hopes to go back to a full service motion one day but at the moment this one is working pretty well.

A lovely passing shot from Sonay Kartal opens up a 40-15 lead.

There's even a hint of a smile on Kartal's face as she watches that land

Kartal gets her first hold to keep this match on serve.

Image source, Getty Images

Jordan Thompson has retired and this one is over.

The Australian gave it everything he could but after attempting to carry on for a game following the medical time out, he decided enough was enough.

Fifth-seed Taylor Fritz progresses after a 41-minute victory.

Image source, Reuters

I was going to save that snippet for later but Leon Smith has let the cat out of the bag now.

Yes, not only will victory see Sonay Kartal into the quarter-finals but it will also confirm her as the new British number one in the live rankings.

Leon Smith
GB Davis Cup captain on BBC Radio 5 Live and BBC Sounds

I don't think Sonay Kartal will be thinking too much about becoming British number one with a win here.

I think what she will be thinking about is whether she can get to the quarter-finals of Wimbledon and then whether she can begin to close in as a seeding at Grand Slams.

Now that would be some run.

Jess Anderson
BBC Sport at Wimbledon

A big response from the crowd as Kartal offers an immediate response to going down a break of serve.

She jogs back to her chair as if to say 'I'm up for this now'.

Taking a few games to settle has been a feature of her matches at this tournament.

Jordan Thompson is back on court after that medical time out.

The strapping on his thigh is off, let's see if it makes a difference.

Tracy Austin
Two-time Grand Slam champion on BBC One

This is an opportunity for both players, to be unseeded and into the fourth round of a major.

Pavlyuchenkova has the biggest serve out of the two and she will need to use that because she doesn't have the same mobility that Kartal does.

Image source, EPA

Sonay Kartal gets it!

A swift break back from the Briton.

That's one way to settle the nerves.

Sonay Kartal had to overcome some nerves early in her third round win over Diane Parry when she was also broken in her first service game.

It looks like Kartal is settling as she wins three points in a row for break points.

Naomi Cavaday
Former British tennis player on BBC TV

There are early signs of what Pavlyuchenkova is all about. Lovely compact swings and good aggression, some firm strikes as well.

Both are looking to get off the mark safely but Kartal needs to be wary on her second serves.

Wow.

Sonay Kartal attempts the lob but the 5ft 9in Anastasia Pavlyuchenkova pulls off a remarkable recovery. Reaching high above her head, Pavlyuchenkova uses a backhand to return over Kartal for the winner and the break.

Image source, Getty Images

The crowd do their best to get behind Sonay Kartal as she sends long to hand over another break point to Anastasia Pavlyuchenkova.

Taylor Fritz is.....blitzing through this?

Sorry.

Seriously though, Jordan Thompson's really struggling with a thigh issue and he's just called an off-court medical time out.

Harry Poole
BBC Sport at Wimbledon

While the rest of us were taking cover as another bang of thunder signalled the start of a torrential downpour, the ground staff were working hard to make sure the courts are quickly covered.

Unlike some of us, they did at least remember to bring their rain jackets today…

Anastasia Pavlyuchenkova attacks Sonay Kartal's second serve and finds a winner for break point.

But Kartal stands firm to defend for second deuce.

A little bit of a muted response from the crowd after that Anastasia Pavlyuchenkova hold but there's a huge cheer when Sonay Kartal goes 15-0 up.

Kartal puts a forehand long to trail 15-30 and is already facing a question or two as they go to deuce.

The Briton is struggling to land her first serve at the moment.

Leon Smith
GB Davis Cup captain on BBC Radio 5 Live and BBC Sounds

This is a huge moment for Sonay Kartal, but also for Anastasia Pavlyuchenkova.

She is one of the most experienced players on tour. She is up there with the highest number of matches played at Grand Slams out of any of the current players. She is a former Grand Slam finalist as well.

So she carries a huge amount of experience, but she isn't what she used to be.