A thoroughly entertaining match taking place on court two, and Jamie Murray and Venus Williams have taken the first break of serve in the second set.

Continue as they are and they're heading to the quarter-finals.

John: This Sinner-Alcaraz match is absolutely outstanding entertainment

Felix Ungar: Sinner escapes from Alcaraz

Quite the ending to the third set on Centre Court.

Fifth seed Carlos Alcaraz saw three set points come and go at 6-3 in the tie-break but Sinner fought back with some huge groundstrokes and soon had two match-points of his own.

The Spanish teenager refused to budge, however and saved both of them, before coming out on top in an epic rally to take the set.

Sinner has been brilliant so far but Alcaraz is very much alive in this match.

Image source, Getty Images

Anne Keothavong
Former British number one on BBC TV

On Tsitsipas calling Kyrgios 'evil' after their eventful match on Centre Court: I think evil is a strong word to use - I think there is a lot of good in Nick Kyrgios and he has done a lot of things for charity - there is a good heart there.

Anyone up against Kyrgios has got to be ready - he is going to be talking to himself and attempting to sledge you, the umpire and the line judges and you just have to find a way to block all of that out.

Tsitsipas, wasn't able to do so, but I do kind of feel for him as well because it was the little things, whether it was the towels at the back of the court going into his basket instead of staying on Nick's basket, the water bottle being thrown on to his bag at the change of ends - lots of little things that were getting under his skin and the fact the scoreboard wasn't going his way.

You can focus on a lot of the negatives but ultimately there was a lot of fantastic tennis played as well.

Another game, another break of serve.

Ons Jabeur gets a second successive break on her second break point, Elise Mertens conceding the point off the backhand.

Ryan: Very pleased for Cam the only Brit left in #Wimbledon, external this year. He really is a future superstar. He's incredible out there on court. He'll be up there with the likes of Nadal and Djokovic in no time at all

Jonathan Jurejko
BBC Sport at Wimbledon

Image source, BBC Sport

Wimbledon third seed Ons Jabeur is one of those super-talented athletes who probably could have been a professional in a few sports.

As well as tennis, the WTA world number two was also a very good swimmer in her youth and had to choose between the two sports.

But the 27-year-old Tunisian says it would be have been another sport which she would have loved to make a career out of if she hadn't been a tennis player.

"Football is my other sporting passion and if I wasn't a tennis player then I'm sure I would be a footballer," she says in her latest BBC Sport column at Wimbledon.

Read all about her love for football, Real Madrid and Cristiano Ronaldo in her latest column.

Alan Jewell
BBC Sport at Wimbledon

Jonny O'Mara and Alicia Barnett are much more vocal on court than Williams and Murray - the all-British pairing's discussions and instructions often carrying all over the court. Quiet whispers to each other are preferred by Venus and Jamie.

The match between Ons Jabeur and Elise Mertens on Court One is under way and we have breaks on both sides of the net!

Jabeur gets the fun started with a break on Mertens' serve but the Belgian breaks straight back.

Tim Henman
Former British number one on BBC TV

Why wasn't Tsitsipas defaulted for hitting the ball into the crowd on two occasions during his match against Kyrgios?

Because he was very fortunate that it didn't hit someone. Going back to 1995, I unfortunately hit a ball away in frustration and I hit a ball kid. and I was rightly disqualified.

It was so fortunate for Tsitsipas that his ball goes between a couple in the third row of the stands and hits the wall. if that hits them, that's an immediate default.

When he did it again, it was indefensible. That is not giving your best effort when you hit a return like that, straight into the crowd so, yes, it just goes to show how the frustration got the better of him.

Finally we have a break of serve on court two and it's first blood to Venus Williams and Jamie Murray.

Can they push on from here? The evening sun looks to beating down on the court. A glorious evening for tennis.

Image source, Getty Images

Fifth seed Carlos Alcaraz barely had a sniff of breaking Jannik Sinner's serve in the first two sets but he did slightly better in the latter stages of this one, and might have fancied his chances when the Italian served to stay in it at 5-6. Would he wobble?

Four thumping deliveries later, we got our answer. We are heading into a tie-break.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live

Whether you like Nick [Kyrgios] or you don't you can't deny he makes people animated. I don't know if there should be a line on how much you're allowed to talk to an umpire or not because I can only recall back in the day when John McEnroe would get angry, that was part of tennis and I like to see it. I don't like to see the part where they're trying to hit each other with the ball but the other part is fun.

I think bullying the referees or the linesman or the ball kids sometimes that is totally unacceptable and that has to stop, period. That just can't be allowed.

What he was doing in that first round match was unacceptable. But the problem was that the umpire was sitting in the middle really because he had let Stefanos [Tsitsipas] get away with just smacking the ball at the end of the second set into the crowd.

The thing is, I think I even heard the commentator say he should be disqualified, so for the umpire to then give a warning to Nick after he'd let Stefanos get away with that, he should have been more firm from the start.

All eyes will be in on the main court on Monday from 13:30 BST where Australia's Nick Kyrgios takes on American Brandon Nakashima for a place in the quarter-finals.

Kyrgios has been at the centre of attention after his fiery win over Greece's Stefanos Tsitsipas on Saturday night. Here's what some of the pundits have been saying...

Alan Jewell
BBC Sport at Wimbledon

Plenty of prosecco and Pimms being drunk on court two - there goes the pop of a cork mid-game - where it's a very jovial atmosphere. The vast majority of the fans may be here for the fun of the Williams-Murray partnership but Barnett and O'Mara have started well, taking Williams to deuce on her first service game and then bringing up break point against Murray. This one is looking very competitive.

Image source, PA Media

Next up on Court One is third seed Ons Jabeur as she takes on Elise Mertens for a place in the women's quarter-finals.

The Tunisian reached the last eight 12 months ago, while Belgium's Mertens has never made it past the fourth round.

Image source, Getty Images

Lee Fergusson: Yes...yes...yes...Cameron Norrie is through to the quarter-finals of Wimbledon in straight sets!

Russell Truran: Brilliant performance from Cam Norrie to make the quarter-finals!

Andrew: Well done Cam

Still on serve on court two, but Jamie Murray and Venus Williams are lucky not to be a break down.

They saved break point in a tight fifth game featuring a peach of a backhand from Jonny O'Mara.

Image source, Getty Images

Cam Norrie, speaking on Court One after his fourth round victory: "It's shocking for me - to make my quarters for the first time and have my family here it's so special. A huge match for me and for both of us and to play the way I did today and execute everything, I obviously really enjoyed it. It's pretty crazy - a lot of feelings at the moment but I enjoyed it.

"I'm the last one [Brit] left so why not get behind me even more now? I think from the first round everyone has been behind me and supporting me and it's showed in tough moments in the matches - especially serving for the match there - there were a lot of things going round my head but I managed to stay calm and do it. It was great you guys helped me through it.

"I think if you watched me in 2017 at Wimbledon I was not very patient, I wanted it all to happen very quickly and I got chopped up in an hour and 10 minutes in the first round to [Jo-Wilfried] Tsonga.

"I've improved a lot and matured on the court and kept progressing with my team and stayed patient with myself and embraced the grass surface - it's probably not my favourite surface but this gives me a lot of confidence. [I've] definitely improved mentally over the years and I'm way more mature as a player and I think it shows."

We'll bring you Cam Norrie's post-match comments soon. He put out a plea to fans to get behind him now he is the only Brit left standing in the singles draw following Heather Watson's exit earlier.

Norrie is the first British man to reach the singles quarter-finals since Andy Murray in 2017 and first British player since Johanna Konta in 2019.