Image source, Reuters

It takes double the time of the first set, which only ran for 21 minutes, but Jannik Sinner wraps up the second and is closing in on a spot in round four.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Miomir Kecmanovic has got to come up with something now, otherwise he's going to be in a deep, deep hole.

Jannik Sinner thinks he has another ace to make it 40-15 but it's called wide. The Italian challenges but Hawk-Eye falls in favour of the line judge and it's 30-30.

Sinner does find the ace to make it 40-30 and has set point.

New balls for this ninth game of the second set and Jannik Sinner begins with a 130mph ace.

Fine acceleration from Miomir Kecmanovic who applies pressure at the net and gets his reward. 15-15.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Image source, Getty Images

Truthfully, Jannik Sinner has been on his game since the get go. Miomir Kecmanovic has had to play well just to hang in there.

Miomir Kecmanovic is being made to work for this service game.

After leading 40-15, Jannik Sinner gets it back to deuce with his relentless approach eventually wearing Kecmanovic down.

Sinner is playing 3D chess here. A lovely set-up shot allows him to move to the net and volley the return for advantage.

And he gets his break. Sinner will be serving for the second set.

Nick Mullins
BBC Sport commentator at Wimbledon

Miomir Kecmanovic has just found his timing, his rhythm and of course his confidence over the last 20 minutes or so.

Emphatic from Jannik Sinner who strides to the net and volleys into the corner as Miomir Kecmanovic struggles to deal with the serve. 30-15.

Sinner holds to 15.

Any break of serve here could be very damaging.

Image source, Getty Images

Miomir Kecmanovic gets his second hold to love.

The Serbian was broken twice in the first set but is looking more assured now.

Jannik Sinner is just so consistent, especially on serve.

Any time Miomir Kecmanovic does dig out a return, Sinner is ready and waiting to pounce.

Sinner takes the game to love after a bit of help from the net cord.

Jonathan Jurejko
BBC Sport at Wimbledon

Seconds before Jannik Sinner and Miomir Kecmanovic walked out, there was a commotion close to our Centre Court commentary box.

I dashed out to see what the fuss was about. We had another marriage proposal!

Paul Rowan was down on one knee when I got there, asking girlfriend Amy if she'd be his wife.

A security guard was primed to be the photographer, while hundreds of fans are cheered as they watched on. Luckily for Paul, Amy said 'yes'.

Image source, BBC Sport

So why did he decide to propose here? "Yes, tell me too," inquires a giggling Amy.

"There is no better place really is there," Paul says. "The wet weather ruined what I was going to do on the Hill so when we were in here I thought 'this is the time'."

The Hampshire couple kindly posed for a photo, despite Amy worrying she had make-up smeared over her face after some tears of joy.

"Oh wait," says Paul. "Can you wait to put on the live feed until we've told the kids?"

No problem. The coast is clear... please join in a toast to the happy couple!

Miomir Kecmanovic gives Jannik Sinner a taste of his own medicine by rattling off four successive points.

Sinner comes racing back into the game though and he fires down the line after sliding towards the net to meet the ball.

Kecmanovic goes on to hold. It would have been brutal to throw that game from such a commanding position.

Jannik Sinner is on the verge of holding to love for the third time in this match but Miomir Kecmanovic digs out a return from what looked an impossible position, sliding into the corner on the baseline and looping it cross-court away from the Italian. 40-15.

Sinner gets it done on the next point.

He has dropped just four points on serve so far.

Image source, Getty Images

Debbie: I hope we get the mixed doubles tomorrow. It's going to be lovely. And keep an eye on centre court tomorrow as they normally do a Royal box presentation

Your wish is Wimbledon's command, Debbie. Andy Murray & Emma Raducanu are scheduled fourth on Court One tomorrow for their mixed doubles first round match.

World number one Jannik Sinner does not want to hang around.

The Italian required just 21 minutes to take the first set against Miomir Kecmanovic.

Image source, Getty Images

Miomir Kecmanovic saves and has advantage.

A serve deep in the corner has Jannik Sinner on the move and there's an error into the net on return.

Kecmanovic holds.

He'll be feeling much better with that first set now firmly in the past.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

Jannik Sinner has worked extensively on his volleying skills which are better than ever. He uses the dropshot as his great rival Carlos Alcaraz does so well.

The longest rally of the match so far - 16 shots - comes to an end as Jannik Sinner unleashes a drop shot, Miomir Kecmanovic just about returns and the Italian volleys it home at the net. 15-0.

This time it's Sinner getting the run around. He slides at the baseline to hook the ball back and Kecmanovic finishes in the opposite corner. 30-15.

Kecmanovic sends it just wide and Sinner has an early chance to break in set two.

A fine response from world number one Jannik Sinner as he also goes on to hold to 15.

It doesn't even look like he's broken a sweat yet.

He wrapped up that first set in just 21 minutes!

Image source, EPA

Where do we go from here?

Miomir Kecmanovic will be pleased to be on serve to get this second set under way. A well placed forehand gets him in front. 15-0.

Jannik Sinner hits back but Kecmanovic has found his groove and holds to 15.