It's 30-30 in Cameron Norrie's service game, the leftie eventually cracks a forehand away for a winner but then goes long on the next point.

Deuce.

Those tension levels continue to rise inside Court One.

Harry Poole
BBC Sport at Wimbledon

This is the first meeting between two top-20 players in the men’s draw this year at Wimbledon.

Both players are still finding their range at the moment but to the crowd’s surprise it’s reigning champion Carlos Alcaraz who has suffered the first setback.

Those inside Centre Court are persuaded to get involved for the first time with shouts of encouragement as Alcaraz struggles to get himself going.

As I was saying earlier, the Spaniard often takes his supporters on a bit of a ride…

Andrey Rublev is racing through this opening set and taking his opportunities while Carlos Alcaraz still struggles to find his range.

Rublev, wearing his trademark headband, gets a hold to 30 and is firmly in the driving seat.

Chris Bradnam
BBC Sport commentator at Wimbledon

They sell the used balls at Wimbledon. I'm not sure you'd want these ones, though.

The dog might even say no.

Image source, Getty Images

Gets it!

A second serve gives Cameron Norrie a chance and eventually Nicolas Jarry breaks down with a shot that goes long.

The first break of serve since the eighth game of the first set.

Nicolas Jarry's pace has slowed between service points a little bit.

He played a five-setter in round one against Holger Rune and then came through a tough match in four sets against teenager Joao Fonseca on Friday.

Cameron Norrie celebrates winning a point that gets us to 30-30.

Double fault - break point Norrie...

Image source, Reuters

Andrey Rublev gets the break at the first attempt when Carlos Alcaraz catches the ball on the frame of his racquet.

Alcaraz is just looking a little of it at the moment but there's plenty of tennis to be played.

Tim Henman
Former British number one on BBC Two

It is important to hold the serve to build the scoreboard pressure [when serving first].

When you get to 4-3, if you are the person serving second you are playing catch-up.

You realise a couple of poor shots and it could be all over. A way to go before we can talk about that, though.

Carlos Alcaraz's lack of rhythm isn't just tied to his serve, the Spaniard is yet to get into full flow with his all-round game.

A couple of loose forehands - one long and one into the net - hand Andrey Rublev a 0-30 lead.

Alcaraz puts a slice into the net and now has three break points to defend.

Image source, PA Media

All eyes are on Cameron Norrie on Court One but there are many Brits in mixed doubles second-round action around the grounds at Wimbledon.

On court three, David Stevenson and Maia Lumsden are a set down against eighth seeds Mate Pavic and Timea Babos of Croatia and Hungary respectively.

Over on court two, Joe Salisbury and his Brazilian partner Luisa Stefani are a set to the good against Argentine Andres Molteni and American Asia Muhammad, winning the opener on a tie-break 7-6 (9-7).

And Joshua Paris and Eden Silva have been awarded the win on court 18 - their opponents retired after losing the first set 7-6 (7-2).

Neal Skupski and his American partner Desirae Krawczyk are just getting their match under way on court 17.

A solid way to start the final set for Cameron Norrie, who holds serve quite comfortably.

Serving first might be a tiny advantage for the Briton in the decider.

Greg Rusedski
Former British number one on BBC Radio 5 Sports Extra 2 and BBC Sounds

Norrie had his chances in that set. Both players are going to need a change of clothes but if I was Jarry, I would not be walking off the court yet because all of the momentum is with him.

It's going to be about who believes that little bit more.

Carlos Alcaraz steps into the court to strike a forehand but it dips into the net.

Another unforced error from Alcaraz hands over the hold.

Still some way to go for Nicolas Jarry to beat the outright number of aces in a match.

John Isner sent down 113 in that Wimbledon epic with Nicolas Mahut that ended 70-68 in the American's favour in the final set.

Of course we won't have anything like that here! If we get to 6-6 again in the final set, it'll be a champions tie-break (the first to 10 wins it) to decide the winner.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

It had to end like that, didn't it?

Nicolas Jarry slaps an ace down the middle - his 43rd of the match.

FORTY-THREE!

Sure there will be a few more in the deciding set and reckon that could get him on to the leaderboard for most aces in a Grand Slam match.

Image source, Reuters

Andrey Rublev may have settled quickly with that hold to love but Carlos Alcaraz is still finding his rhythm.

A double fault from the five-time Grand Slam champion sees him trail 15-30.

Alcaraz lands just 50% (3/6) of his first serves in but fights back to get the hold to 30.

Cameron Norrie has played two five-set matches at Wimbledon before - and won them both.

He went the full distance in defeating Jaume Munar in the second round and David Goffin in the quarter-finals, both in 2022.

In his career, he has a 7-7 win-loss record in five-set matches at Tour-level.

Tim Henman
Former British number one on BBC Two

There is such fine margins.

Such a gutsy effort from Jarry. He has never let his head drop.

He was down in that breaker but he has found a way to get back on level terms.

Both players leave the court at the conclusion of that set.

They've been playing for three hours and 33 minutes on Court One.

Image source, Getty Images

We're going all the way!

Another huge ace from Nicolas Jarry, who has fought back from two sets to love down and facing a match point in the third-set tie-break to take us into a decider.

Wow. What a match.