Jess Anderson
BBC Sport at Wimbledon

Flavio Cobolli is absolutely loving this.

He said before the match that he wanted to enjoy every point and boy is he doing that right now.

He waves his arms to the crowd to encourage more noise from the crowd as he gets to deuce then has a big smile on his face as they begin to chant his name. Then he literally skips back to the baseline

He wanted the big court with the big atmosphere. And he's got it.

An overhit forehand from Novak Djokovic gives Flavio Cobolli a break point.

Jess Anderson
BBC Sport at Wimbledon

A smile on the face of Flavio Cobolli as he takes the adulation from the crowd after a magnificent point.

That was a long, intense rally and he clung on in there.

Novak Djokovic goes for power on a cross-court approach shot but clips the net to give up 0-15 before Flavio Cobolli goes toe-to-toe in a lengthy rally and comes out on top as Djokovic puts another forehand into the net. Cobolli kissed the baseline a couple of times with some deep strokes.

Djokovic pulls it back to 30-all and moves to game point with a smash, but Cobolli hits back following another lengthy rally. His name rings around Centre Court.

Briton Andy Lapthorne has lost his first round wheelchair quad singles match against Turkey's Ahmet Kaplan.

Lapthorne responded well to losing the opening set - taking the second in swift fashion - but ultimately came up short in his pursuit of a third Grand Slam singles title.

Elsewhere, Briton Cornelia Oosthuizen and Dutch partner Jinte Bos are currently in action against Chilean-Japanese pairing Macarena Cabrillana and Saki Takamuro in the women's wheelchair doubles.

Cabrillana and Takamuro lead 5-3 and are preparing to serve for the opening set.

That will give Flavio Cobolli confidence.

He tests Djokovic's elasticity by stretching him into the corner and can eventually move into the net to bury a volley winner. The crowd roars in support.

Djokovic's attempted drop shot goes into the net for 30-0 and the Italian closes out the service game with a timely ace.

Image source, Getty Images

World number one Jannik Sinner, speaking on court: "The feelings are very different, I’m very very happy with my performance, playing against him [Ben Shelton] is so difficult.

"You have chances and he serves very well as we saw in the last game but overall we play each other more and more we get to know each other a little bit better and I’m looking forward to these kind of battles.

"It’s even more special to play in front of you guys, it’s an honour and an amazing feeling."

On what he's changed over the past couple of years: "I remember the first time playing on Centre Court and the first time playing the semi-finals here and it’s very very special.

"I’m very much looking forward to it but when you’re young, one year it makes such a difference because you get more into the big stages and you get used to it and it feels so amazing.

"Wimbledon is the most special tournament throughout the calendar so being again here in the last four means a lot to me and hopefully it’s going to be a good match the next one, let’s see who I’m going to play against but I’m looking forward to it."

On his elbow injury: "When you’re in a match with a lot of tension you try to not think about it, it has improved a lot from yesterday to today. Yesterday my day was very short on the practice court, 20 minutes with the coaches.

"I’m looking forward to it now, there’s no excuse, there is no better stage to play tennis and I showed this today, the atmosphere helps me so much so thanks so much for the support."

Flavio Cobolli just has no answer to Novak Djokovic.

He gets on top of an extended rally but such is Djokovic's athleticism that he hangs in there, regains control of the baseline, and waits for Cobolli to make the error, which he does. 15-0.

A couple of big serves can't be returned into the court. Djokovic holds to love.

Image source, Getty Images

Jess Anderson
BBC Sport at Wimbledon

Is this about to get a bit ugly for Flavio Cobolli?

He looks up to his coaching box for inspiration as he trudges to the baseline ready to receive.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Sports Extra and BBC Sounds

Flavio Cobolli started missing from the back of the court and you can't start doing that.

It is so difficult to sustain the intensity when you are playing someone like Novak Djokovic on the Centre Court of Wimbledon who just doesn't let you breathe.

Cobolli is only 23 and he does not have a lot of experience at Grand Slams. It is all a learning curve. Let's see if he can have a better start to the third set.

Novak Djokovic only needs one.

After a lengthy rally, Flavio Cobolli puts a forehand into the net and Djokovic breaks at the first opportunity.

Image source, Getty Images

Oh, that is teasing from Novak Djokovic.

He targets Flavio Cobolli's backhand, driving him further and further behind the back corner of the court before delivering the drop shot. Cobolli nearly gets there but the umpire calls "not up".

And in the blink of an eye, Cobolli has gone from 15-0 to facing two break points.

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

What a performance from Jannik Sinner.

Everybody was worried about his elbow but this was a statement performance.

He found a way to get through, the tennis was exceptional from both men.

Jess Anderson
BBC Sport at Wimbledon

Flavio Cobolli has left the court at the end of that set.

Novak Djokovic is doing some stretches.

While Jannik Sinner celebrates victory on Court One, Novak Djokovic levels things up on Centre Court.

An easy service hold makes it four games in a row for the 38-year-old.

Flavio Cobolli won just two of 18 points on Djokovic's serve in set two and the Italian leaves the court for a short break.

Djokovic is not quite all smiles in his seat, he remains focused but surely feeling happier about life after a dominant second-set display.

By the way, that's now 15 successive sets that Jannik Sinner has taken against Ben Shelton.

The American must be wondering what he has to do just to win a set never mind upset the world number one and win a match!

Nick Mullins
Tennis commentator on BBC TV

Nothing wrong with that elbow it would seem and nothing wrong with his game. He turned what might of been a five-star Wednesday afternoon matinee into something that was frankly commonplace, and that's what he does.

Image source, Getty Images

Jannik Sinner is the youngest player to reach the semi-finals in four consecutive Grand Slam men’s singles events since Rafael Nadal in 2009.

Nadal reached five successive semi-finals from the Australian Open in 2008 through to the Australian Open in 2009.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

Well, on that evidence, Jannik Sinner's elbow doesn't look like a problem.

Certainly not in his game. And not as he shakes his strapped right arm in the air to celebrate victory.

Flavio Cobolli saves the first two break points, but not the third... what a return from Novak Djokovic.

It only seems a few moments ago that Cobolli won the first set on a tie-break, but now Djokovic is serving to level the match.

Image source, Getty Images