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LIVE: Defending champion Jannik Sinner wins first set 7-5 against Jan-Lennard Struff on Court One
LIVE: Jessica Pegula wins first set 6-4 against Coco Gauff on Centre Court
Once Pegula v Gauff finishes, men's second seed Alexander Zverev will resume fourth-round match with two-set lead over Jiri Lehecka
Alfie Hewett wins in first round of men's wheelchair singles but fellow Briton Gordon Reid loses 6-3 6-1 to defending champion Tokito Oda
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*Pegula 6-4 3-5 Gauff
A monstrous forehand return from Coco Gauff helps up bring up three break points - her first of the set...
And a double-fault from Jessica Pegula gifts it to her old doubles partner!
Gauff clung on early in this set, breaks and will now serve to level the match.
*Sinner 7-5 5-6 Struff
At 30-all, Jan-Lennard Struff nets a first serve. He goes wide on his second and wallops Jannik Sinner's deep return for a down-the-line winner.
An ace completes the hold. Sinner will once again have to serve to stay in the set.
*Pegula 6-4 3-4 Gauff
Pat Cash
Former Wimbledon champion on BBC Radio 5 Live
Both players have got their tactics right. It's just no one has been able to string a lot of points together.
Sinner 7-5 5-5 Struff*
Greg Rusedski
Former British number one on BBC Radio 5 Live
This is where Sinner is so good in his service accuracy, it gets him out of trouble.
Sinner 7-5 5-5 Struff*
Andrew Castle
BBC Sport tennis commentator on BBC Two
Those targets become smaller as the match becomes closer. Jannik Sinner just couldn't hit it.
As a reminder, he had the break in this second set but Jan-Lennard Struff is hanging around, as he has done throughout this tournament.
*Pegula 6-4 3-4 Gauff
Coolly done by Coco Gauff to keep this second set on serve.
Down 0-30, the pressure was on but there were no signs of nerves this time from the 22-year-old.
A 122mph ace down the middle takes it to 40-30 and then, with a little bit of help from a generous net cord, she converts game point as Jessica Pegula fires into the net.
Sinner 7-5 5-5 Struff*
Two more excellent first serves from Jannik Sinner.
The first is an ace. The second, out wide, pings off the end of Jan-Lennard Struff's racquet and into the crowd.
*Sinner 7-5 4-5 Struff
Big serve out wide returned into the net. What a time for Jannik Sinner to find his first serve.
*Sinner 7-5 4-5 Struff
Jannik Sinner offers a long, hard look at his box after going down 0-15.
He responds with a forehand winner and an ace but then Jan-Lennard Struff attacks a second serve with a booming return and swoops into the net to level the game.
With a wild cross-court backhand, the German has set point.
Pegula 6-4 3-3 Gauff*
Pat Cash
Former Wimbledon champion on BBC Radio 5 Live
Pegula has had chances to have a couple of breaks, she's just had a few bad drop shots on some big points.
Pegula 6-4 3-3 Gauff*
An ace down the T seals another straightforward hold for Jessica Pegula.
Back over to Coco Gauff, who will have new balls to work with in the next game.
*Sinner 7-5 4-5 Struff
Greg Rusedski
Former British number one on BBC Radio 5 Live
Sinner has not put down the hammer yet. All of a sudden, it looks like Sinner is pouncing. He doesn't have that ruthlessness, he needs to lift his level.
Struff just needs to carry on risking it and move forward.
*Sinner 7-5 4-5 Struff
Down advantage, Jannik Sinner once again can't capitalise on a second serve. A forehand error from the Italian completes the hold for Jan-Lennard Struff.
Image source, PA Media*Pegula 6-4 2-3 Gauff
Harry Poole
BBC Sport at Wimbledon
While we could talk all day about Coco Gauff’s ‘problematic’ serving, one part of her game that isn’t lacking is her fighting spirit.
It’s clearly a struggle out there for her today, against a quality opponent. Everyone can see and feel that here.
But despite the errors and the double-faults, she is still battling away and doing what she must to stay alive in this match.
Sinner 7-5 4-4 Struff*
Saved with a first serve down the T which Jannik Sinner can only return long. Jan-Lennard Struff lets out a "come on!".
Sinner 7-5 4-4 Struff*
What a return from Jannik Sinner! Dragged wide and deep behind the baseline, he pings back a low cross-court backhand and Jan-Lennard puts the ball into the net. 30-all.
With a loose forehand, Sinner has a break point.
Sinner 7-5 4-4 Struff*
John McEnroe
Three-time Wimbledon singles champion on BBC Two
Jan-Lennard Struff's first serve percentage has dropped below 60% now. He is giving Jannik Sinner more looks and living a bit dangerously here.
However, Jannik Sinner has missed a few second serve returns too.
*Pegula 6-4 2-3 Gauff
That will be very welcome for Coco Gauff!
No stress, no drama, just a very straightforward hold to love.
Pegula 6-4 2-2 Gauff*
After the rollercoaster nature of Coco Gauff's recent service games, it's a much calmer affair for Jessica Pegula.
She holds to love and keeps this second set on serve.
Egberink 1-6 3-6 Hewett
Image source, PA MediaGreat Britain's Alfie Hewett, speaking on court three after beating Netherlands' Tom Egberink in straight sets: "First round matches never get any easier, but it is a privilege to be on these courts and it is certainly something I don't take for granted each year. There were definitely some nerves in the beginning there, a few too many shanks, but it was good to get through in the end.
"I know what Tom [Egberink] is capable of. He has got a great backhand slice and a big forehand as well, so I knew I had to play it smartly. I just felt like I was playing a little bit too much into that backhand side at times and he was knifing it pretty well towards the end of the second set. I thought I did well to keep my serve in that second set and just keep in it."
On winning the men's wheelchair singles title at Wimbledon in 2024: "It is the best feeling in the world. This is the one tournament where I probably don't have the best sleep, but that's because of excitement and the experiences that I've had here. Wimbledon is really a standout for me. Some of the memories that myself, my team and my family have had here over the years have been a real highlight of my career. Hopefully it is even better this year."
