It's into the net again from Paul Jubb and just when you thought he might win it, advantage is back in Seyboth Wild's hands.

He'll be heartbroken by that and will again have to attack the Brazilian's serve to stand a chance.

Charlotte Coates
BBC Sport at Wimbledon

Incredible from Paul Jubb! He’s still in it!

A huge roar from court 14 as Jubb beats his chest and responds to the crowd.

After saving four match points, the Brit knew he needed to break or else he was going home.

Jubb’s bags remain firmly unpacked!

Image source, BBC Sport

Anne Keothavong
Former British number one on BBC TV

Another example of Maria’s court craft, putting the ball in awkward places. She does read the game so well.

A fine start to the tie-break from Katie Boulter as she breaks Tatjana Maria before holding to lead 2-0.

Maria has shown throughout every game on every point that she will run herself into the ground and it's the same in the tie-break as a drop shot helps her back to 2-2 before a volley puts her 3-2 in front.

We're under way in the day's last match on Court One, as world number one Iga Swiatek takes on former Australian Open champion Sofia Kenin.

Kenin knocked out fellow American Coco Gauff in the first round last year and starts well here, earning a break point.

She is unable to convert, though, Swiatek holds and then brings up three break points of her own.

All three disappear but she makes no mistake when presented with a fourth, racing in to slap Kenin's drop shot down the line for a winner.

Emily Salley
BBC Sport at Wimbledon

To a tie-break we go. Katie Boutler gives herself a little pep talk, shaking her racquet angrily to get herself riled up and ready.

It seems to have done the trick. That's a great start.

Remarkable!

Paul Jubb has smashed a winner down the line to break the Brazilian.

What a game.

Image source, PA Media

Katie Boulter races to a 40-0 lead.

Tatjana Maria refuses to fold and has forced her way back to deuce but it's Boulter who has advantage as she perfectly executes a backhand.

And Boulter holds! Who thought we'd be heading for a tie-break after Boulter lost those opening three games?

Charlotte Coates
BBC Sport at Wimbledon

Incredible heart from Paul Jubb as he saves four match points to keep himself alive on court 14.

The crowd are loving it and him!

Anne Keothavong
Former British number one on BBC TV

Boulter will have to find a way to remain calm out here, and dig deep. She will have to pick and choose her moments to play the kind of aggressive game she wants to out here.

Tatjana Maria is hustling like mad.

Tatjana Maria is so happy to sit deep of the baseline and defend, it almost entices Katie Boulter to come up to the net and she accepts that invitation, stepping forward to volley but this time it's long. Advantage Maria.

Roles reversed as Maria holds with a volley of her own at the net. She had half the court to aim at and does not miss.

An ace takes Djokovic two points away.

Jonathan Overend
BBC Radio 5 Sports Extra commentator

Kopriva has fought hard but won very few games and that is the challenge of playing the very best in Djokovic.

A tense moment as Katie Boulter hits a shot deep and it's deemed to have just grazed the baseline to put her in a 30-0 lead and in contention to break.

Tatjana Maria challenges the call but Hawk-Eye shows it was on the chalk.

Now Boulter challenges as Maria thinks she has levelled with an ace at 30-30 - again credit has to go to the line judge, it's spot on.

Boulter has a chance a break point but she chases it too aggressively when trying to return a second serve and it goes to deuce.

Britain's Paul Jubb has to hold his serve here to stay in the Championships.

He looks ever so defeated by Seyboth Wild's relentless serving.

That should be that. Novak Djokovic has just been way above the level of his opponent today. Another break of serve and Djokovic, who has won 17 of 22 games, is now serving for a place in the last 64.

Coco Vandeweghe
Former two-time Grand Slam semi-finalist on BBC Radio 5 Live and BBC Sounds

I think with Swiatek's extreme grip on the forehand wing, it’s really hard to generate your own pace and we’ve seen that on the faster surfaces, when she’s playing on a fast hard court or even in Madrid against Sabalenka, when she was going up in that amazing three-set match in the final.

When anyone can rush her to that forehand wing she really does struggle to get her own pace and manoeuvre the ball.

But she’s been able to hang in. Let’s not knock Iga. She’s number one in the world for a reason with her defensive skills.

I can’t believe more women don’t use the slice to her forehand. We saw Ash Barty do it with absolute precision on the way to her Championship here. It’s an underutilised shot here on the grass courts, especially in the earlier weeks where the ball lands a bit dead and you have to move your feet to get up to the ball.

Emily Salley
BBC Sport at Wimbledon

Katie Boulter loved that service hold.

The British number one looks up to her team with a clenched fist and stern look before pointing to her temple. "Come on," she mouths.

Image source, Getty Images

Katie Boulter is serving to stay in the set but it's not a good start as she makes another error at the net. 0-15.

Boulter turns back to where her coach Biljana Veselinovic is sat and vents her frustration.

Getting those worries off her chest works as Boulter moves 30-15 in front but an awkward bounce doesn't favour the Brit and it's level at 30-30.

Boulter slams a backhand down the line with authority to hold.