This time it is Henry Patten's turn to thump a fierce ace down the court with Dan Evans' return going narrowly wide.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

Just when you thought Alcaraz had ruined the vibe on Centre Court, Tarvet bowls back into the room to lift it.

Some serious speed from the British qualifier helps bring up more break points but, again, he can't get over the line.

A sad sigh goes around the world's most iconic court when he bats a volley out of play. It was the sun's fault.

Doubt many of the 15,000 here expected anything other than a one-sided scoreline, but they have perhaps got more entertainment than they thought.

Russell Fuller
Tennis correspondent on BBC Radio 5 Live and BBC Sounds

One of the greatest wins of Cam Norrie's career and it's come on his favourite court, the number one court at Wimbledon.

The celebrations are fairly brief which is interesting, Norrie is not celebrating it like the win of his life but celebrating it like a man who has unfinished business here.

Gary Rose
BBC Sport at Wimbledon

One final ovation for Cameron Norrie after that brilliant, gutsy display.

He reached the semi-final in 2022 and after that display you can’t rule him out going far this time.

Image source, Reuters

Break points number six, seven and eight pass Ollie Tarvet by.

The Brit does everything to stay in that first set, showing some real foot speed and deft of touch with a couple of brilliant passing shots.

But Alcaraz just won't let him by, as the Spaniard saves three break points - showing soft hands at the net with two trademark volleys before Tarvet hits wide on an overhead volley.

Gigi Salmon
BBC Sport tennis commentator on BBC Radio 5 Live and BBC Sounds

How is Oliver Tarvet's energy going to last? It's unbelievable stuff out here on centre court.

Image source, PA Media

Former British number one Cameron Norrie on Court One after his win: "I was really happy when I saw the schedule. I saw I was on Court One and that's my favourite court. It's an amazing atmosphere and we both played a really high level.

"I just stayed calm and played point by point. It was so nice to play Frances at such a big match. I served really well in that last game and you guys we were amazing in that last game so thank you.

"It's so special. You forget so quickly. You just feel goose bumps. It's such a special court and such a special tournament. I just walked out and smiled as much as I could. And then you have to go out to battle. I'm really happy with my level today.

"It's so special. My parents are here, my sister is watching as well, and my girlfriend as well."

Harri Heliovaara and Henry Patten lead in the second set and it's a thumping ace from Heliovaara that moves the 2024 champions ahead against British pair Dan Evans and Henry Searle.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live and BBC Sounds

There's some serious speed from Oliver Tarvet, if I was Carlos Alcaraz I would be thinking, is he really faster than me?

And that's what the world's best can do to you.

Carlos Alcaraz breaks Ollie Tarvet for a second time, taking the second of two break points with a trademark deft volley at the net.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

Image source, Reuters

Ollie Tarvet is trading nicely with Carlos Alcaraz from the baseline - generally until the two-time defending champion goes boom or bust.

Neither outcome materialises in a 27-shot exchange at 0-3 30-30, though.

It allows the British qualifier to see out the hold and click his side of the scoreboard into action.

A fierce roar from Tarvet is quickly drowned out by celebratory cheers from the home crowd willing him on.

Those get louder when more break points come his way, but are quickly replaced by anguished groans as Alcaraz wriggles off the hook.

Nerves? What nerves?

Nuno Borges has a third set point and he takes this one, sealing the second set with an ace. Brilliant stuff from the Portuguese.

Billy Harris leaves the court for a bathroom break and the Briton will try to find a way to make his mark in this match.

This is the first time Cameron Norrie has beaten a top 20 player at Wimbledon.

What a missed opportunity for Ollie Tarvet.

The Brit gets himself two break points but Carlos Alcaraz aces and then forces Tarvet into a wayward forehand.

The five-time Grand Slam winner holds from deuce.

That's five break point opportunities missed now from Tarvet.

Another ace! 40-15.

Norrie nets but then responds with an ace. 30-15.

Nuno Borges has two set points but he fails to convert them and Billy Harris remains in the set.

Borges now has the chance to serve for this second set. Let's see how his nerves hold up.

Here we go.

Norrie gets his first serve in and Tiafoe slaps a forehand wide. 15-0.

Got him!

Cam Norrie gets a rally going and Frances Tiafoe gets impatient again, walloping a forehand long.

Norrie breaks to 15 and will serve for the match.