An interesting stat from this match so far is that Bublik has earned four points through drop shots so far while Sinner has not won one. An indicator of how hard Bublik has had to work for each point.

No need for a drop shot from Sinner in this set either. He holds to 15.

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Briton Andy Lapthorne is through to the semi-finals in the men's wheelchair quad singles after a 7-5 7-5 win against Canada's Robert Shaw.

The 34-year-old will face top seed Niels Vink for a place in the final after the Dutchman beat Turkey's Ahmet Kaplan 6-2 6-4.

There is further British interest to come later in the day in men's doubles and mixed doubles.

Luke Johnson is teaming up with Dutchman Sander Arends to face Frenchman Edouard Roger-Vasselin and Hugo Nys of Monaco for a place in the semi-finals - they have shared the first two sets and are into a decider.

In the mixed doubles, Briton Neal Skupski plays alongside American Desirae Krawczyk against American duo Taylor Townsend and Evan King.

We were worried this would be a steamrollering based on the opening 25 minutes of this match - but Alexander Bublik is made of stronger stuff.

A third double fault of the match aside, he holds serve well, crowning the game with his second ace of the contest.

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The problem for Alexander Bublik is that he needs to be perfect to keep up with Jannik Sinner, and that's a near impossible task across every shot in this match.

After working so hard to hold serve in the third game of this set, Bublik is pulled back again as Sinner holds again.

Alexander Bublik's big serve sees him come from 15-30 down to set up a game point - however it lets him down at the key moment, just his second double fault of the match leading us to deuce.

But Bublik finds his serve in time, an unreturnable piledriver seeing him hold his game.

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When Jannik Sinner gets his first serve in, he has won 84% of those points so far. When at his best, the Italian is simply a cut above his opponent.

He holds serve to love.

Successive unreturned serves mean Bublik holds his serve.

A little more encouragement from the six foot five man from Kazakhstan.

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So, Alexander Bublik has - perhaps - finally arrived in this match.

He serves first in the second set.

Bublik must be pleased to have got on the board in the opening set, no one wants a first-set bagel.

He's a charismatic bloke and I don't reckon he'll be too disheartened, though.

Read more about him here.

No mistake this time from Sinner.

Bublik could only return into the net and after just 35 minutes, the Italian top seed has the lead.

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Nice shot. Bublik saves set point with a straight backhand but Sinner works himself another one.

Sinner once again saves break point and Bublik misses the backhand from Sinner's overhead smash.

Sinner set point.

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Good return of serve from Bublik but he can't get his next forehand over the net and that's break point saved.

He'll have a second go at it though as Sinner volleys into the net.

Oh hello.

Bublik earns himself a break point as Sinner skews a forehand wide.

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This is Bublik's first time in a Grand Slam quarter-final.

He said beating British number one Jack Draper in the fourth round was the "best moment of my life".

After that, it's no wonder he's looking a bit sticky against the top seed.

Got it!

Bublik puts his arm up and smiles at the crowd as he takes the hold.

He doesn't seem too deflated.

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Sinner goes long and Bublik saves set point.

But then he slams his backhand into the net for deuce.

Bublik tries to use the drop shot but Sinner chases it down and the Italian's volley brings up set point.

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Woops. A rare mistake from Sinner as he skews a forehand wide for 30-30.