Steve Crossman
BBC Radio 5 Live presenter at Wimbledon

Lorenzo Sonego will be sick of the sight of Ben Shelton. We are at the third Grand Slam of the year and Shelton has knocked him out of both of the other two, once in five sets and once in four.

Both are good at serving. Shelton hit a serve in the last round that would have broken the all-time Wimbledon record if it wasn't for Giovanni Mpetshi Perricard who broke it last week.

This should be a good one and easily could be a long one.

Big hold from the Australian. Could have folded there after Djokovic's second-set revival.

But he made the world number six work for every point and Djokovic could not quite keep up.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

This is where it is so important for Alex to maintain his levels. We know the levels that Djokovic can achieve when he gets to them.

De Minaur looks perfectly content in these longer rallies at the moment.

Image source, Getty Images

Emphatic smash at the net from Alex de Minaur saves the break point.

He dumps another forehand into the net next point.... but saves another break point with a backhand that JUST clips the line.

Novak Djokovic looks on in hope it might be called out, but no.

And the Serb has his hands on his hips in disbelief after another De Minaur shot finds the line next point.

A safety-first rally with neither player willing to take much of a risk ends with Novak Djokovic straying long.

Alex de Minaur outlasts the seven-time SW19 champ in the following rally too. 30-30.

But then a double fault from the world number 11. Break point Djokovic...

Has that rattled the Aussie?

A routine forehand goes wide to begin the third set.

And the another into the net. 0-30...

Image source, Getty Images

Harry Poole
BBC Sport at Wimbledon

That’s the sort of roar that you would usually hear Novak Djokovic unleash after winning a match!

Instead, it’s come at the end of set two, after 95 extremely uncomfortable minutes.

Excited chatter rises up around Centre Court. This is set up very, very nicely indeed.

Image source, Getty Images

Belinda Bencic speaking after her victory: "For you guys it was entertaining but for me it was a big stress. It was a difficult moment. You try to serve it out but it was big stress. The atmosphere was unbelievable."

On playing Alexandrova: "I think I tried to be more brave. I had more matches under my belt and it turned out better than the last time I played her. I really enjoyed this match inside, maybe you didn't see that!"

On reaching the quarters: "I always got stuck in the fourth round. It was so important for me to breakthrough to the quarter-finals. It's a dream come true. Watching this tournament growing up...it's crazy, I'm so happy.

On competing after having a child: "Honestly it's been really amazing. I'm really proud of myself and the whole team. We did an amazing job coming back. It's kind of easy still travelling with her but it's amazing to share the memories together as a family. I'm enjoying it more. I juggle it like every mum does."

Todd Woodbridge
Former Wimbledon doubles champion on BBC Two

The crowd are giving Djokovic some love.

That was a fascinating set of tennis with so many breaks of serve. Novak managed kept the pressure on De Minaur once he got the early break. He has found the fire.

Image source, Reuters

Novak Djokovic lets out a roar as he levels it up. He's fired up!

It was a big missed opportunity for Alex de Minaur in that last game, though.

He follows in a strong return but then get a bit too much whip on the subsequent forehand - long.

Let off for Djokovic and he isn't about to give De Minaur another chance. He serves it out from there.

It's a three-set match now.

Harry Poole
BBC Sport at Wimbledon

Novak Djokovic has become much more expressive now. The frustration was building as he struggled to serve out the set, just when it looked as though he was beginning to get some momentum going.

He pointed to the sky after battling back from 0-30 down, and then whips the crowd into a frenzy as he saves a second break point.

Centre Court chants his name. He needs them, and they’re with him.

Novak Djokovic is furious as, for the second time in quick succession, a net cord works in Alex de Minaur's favour.

The second of them brings up a break back point but Djokovic staves it off. He gets to the net again and is able to sway clear of a De Minaur forehand that sails well over the baseline.

But another forehand finds the net and De Minaur has another break point.

Uh oh.

Trouble for Novak Djokovic? He gets forward but then put a volley into the net.

0-30...

Todd Woodbridge
Former Wimbledon doubles champion on BBC Two

Very skilful on both sides of the net from De Minaur. He plays so hard and flat. To play like that continuously is so tough.

There have been some gruelling rallies in this set. Novak has won a few, but the longer the shots go on, the more De Minaur is coming out on top.

Two superb backhand winners help Alex de Minaur to a relatively comfortable hold.

It's over to Novak Djokovic now. He'll serve for the second set and will have new balls with which to try and do it.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

The crowd are loving this on Centre Court. Potentially some of those extended rallies are having an effect on Novak. He will want to keep points short.

Great play by De Minaur but Novak is able to slide and get enough on it. It's an art form that slide, he has been perfecting it for years.

An ace down the middle and Novak Djokovic is a game away from levelling this match at one set all.

Those early wrinkles with his serve have slowly started to iron themselves out.

Harry Poole
BBC Sport at Wimbledon

You can’t take your eyes off this one.

Well, Roger Federer may have temporarily, but I seriously wouldn’t recommend it.

Five breaks of serve, seven games into set two? Great drama on Centre Court - and it has the near 15,000-strong crowd here absolutely hooked.