We're under way in the final match on Centre Court today. Rafael Nadal to get us going.

He's complaining about the 'mistakes' that judges are making in 'every match'.

Another Tsitsipas service game, another deuce.

Tsitsipas sends an ace down the middle to earn the advantage, and after the point has to be replayed, pings a backhanded winner into the corner.

Oh heck, Nick Kyrgios is calling for a new umpire. He's not a happy chap.

Image source, Getty Images

Harry Poole
BBC Sport at Wimbledon

Nick Kyrgios has won 89% of points on his first serve, dropping just a single point in his past four games.

Tsitsipas, meanwhile, has faced a break point in three of his five games so far. But who is going to blink first?

Lorenzo Sonego can match his best ever run at a Grand Slam today if he beats Rafael Nadal and moves into the fourth round.

He reached that stage of the 2020 French Open, winning 19-17 in a third set tie-break (the longest tie-break at Roland Garros) over Taylor Fritz in the third round before losing to Argentina's Diego Schwartzman.

Sonego also got to round four in last year's Wimbledon before he lost 7-5 6-4 6-2 to Roger Federer on Centre Court.

Image source, Getty Images

Kyrgios flings down a 130mph ace before following that up with a backhand winner.

Tsitsipas concedes the next point before another ace, perfectly planted down the middle, secures the love-hold.

Second seed Rafael Nadal is still on course for a calendar grand slam after his Australian and French Open victories and has won his first two matches at this year's Wimbledon in four sets.

In round three, Nadal will play Italy’s Lorenzo Sonego, who is the 27th seed, despite being down at 54th in the world rankings.

“Every day is a challenge, all the opponents are difficult – we are playing the best players in the world,” said Nadal after his win over Lithuania's Ricardas Berankis.

“I didn’t play much on grass in the last three years so every day is an opportunity to improve. I need to improve. But the fourth set was much better, a good level of tennis and the serve worked better.

“It’s important for me to accept things are not perfect and keep working, being humble, accept the challenge and think positive.”

New balls for Kyrgios' service game and the freshness goes his way as he holds to 15.

That's followed with an equally easy game for Tsitsipas as he holds to the same score.

We've just seen one Spanish hero in Paula Badosa on Centre Court and next up is another one - as Rafael Nadal takes on Italy's Lorenzo Sonego.

Paula Badosa, who has just eliminated two-time champion Petra Kvitova to set up a fourth-round match with another former winner in Simona Halep, tells BBC Sport: "Petra is a champion and for me one the biggest challenges is to play her on grass. To play against her, it was a pleasure for me, it's unbelievable.

"I remember in 2014 I came here to play juniors and the first match I watched was on Centre Court with Petra winning Wimbledon. Stepping out on Centre Court for the first time and playing against a legend is really, really special. She has been an inspiration for me throughout my career.

"I never give up, I'm fighting for every ball, I showed that today. That's been the key in my career. I want to thank everyone. I wasn't expecting people to cheer for me as I knew I was playing against Petra so thank you very much."

On her last-16 tie with Halep, Badosa adds: "It's another former champion. I think I'm playing very well and enjoying the time on court. For me it's important to have fun. I enjoyed playing on Centre Court and I hope to play on Centre Court again and hope we can make a big match."

Petition to have a microphone permanently on Nick Kyrgios?

On second thoughts, that might not be a good idea.

Chris Peddy
BBC Sport at Wimbledon

So here we go then, Kyle Edmund - remember him? Australian Open semi-finalist in 2018 and former British number one?

Here he is back at Wimbledon in his first match since October 2020 - wow how much has changed since then!

He's playing with fellow Brit Olivia Nicholls in the mixed doubles and they're up against Americans Jack Sock and Coco Gauff, who suffered a surprise defeat on Centre Court earlier to Amanda Anisinova in the singles.

She's showing no signs of any hangover from that defeat though as they've broken Nicholls' serve early in this first set.

Edmund looks to be moving pretty freely so far.

All the line judges need a helmet and body armour in this match.

Twice the centre line judge currently facing Stefanos Tsitsipas' serve has had to duck to avoid a serve straight to the face in this game.

Tsitsipas was put under some pressure but holds to keep this set on serve.

Harry Poole
BBC Sport at Wimbledon

Plenty of shouts of encouragement for Nick Kyrgios so far. For this to be the cracker it has the potential to be, it needs the Australian to stay predominantly focused on the tennis.

He's doing that so far, aided by some booming serves. I have no idea how the line judges behind Tsitsipas aren't even flinching as these bullets head their way.

Oh hello! The between-the-legs underarm serve is back in all its glory. Incredible scenes.

Kyrgios hasn't reached the fourth round at Wimbledon since 2016. The only time Tsitsipas has gone that deep was 2018.

Kyrgios holds to love with a between the legs underarm serve.

That probably won't be the only time we see that today.

Andrew Cotter
Tennis commentator on BBC TV

Difficult to know what to make of this so far but what we do know is that it's about as close as we expected it to be.

The draw is really opening up for a lot of players on both of the women's and men's sides to have a deep run and I wonder if Nick Kyrgios could have a real chance if he's dialled in.

Stefanos Tsitsipas plonks down his second ace of the day as he holds his easiest service game so far to 30. Easiest only because it's the only one that hasn't gone to deuce so far.

It ends as Nick Kyrgios slices a return high into the sky and long over the baseline.

Andrew Cotter
Tennis commentator on BBC TV

Nick Kyrgios is chuntering away already but he absolutely romped through that service game.

Never a happy man, but he really can play when he wants to.

Some stunning shots in an easy love-hold.