You'd think the longer this match goes on, the more it would favour Jack Draper - who is 13 years younger than Marin Cilic.

Cilic is showing no signs of slowing down at the moment, though. He has 15-30 in the latest Draper service game.

Just when it's feeling like Iga Swiatek might need six attempts again to get the break, the former world number one gets the job done on the third occasion.

For the third successive set, Swiatek has broken Caty McNally in game two.

Caty McNally saves the second break point before play is halted due to a rogue tissue blowing on the court.

Turns it is has fallen out of Iga Swiatek's bag and no one else is willing to pick it up.

Once play finally resumes, Swiatek gets a third break point despite McNally's best attempts with a behind-the-back return.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

The cloud cover which has appeared in SW19 is symbolic of the mood on Court One.

Slightly gloomy.

The shrieks of 'Come on Jack!' have intensified over the past 10 minutes or so, with a tone of concern running through them.

Cilic wraps up the opening game of the second set.

Jack Draper has a chance to start the second set with a break of serve but Marin Cilic holds firm.

Deuce.

Iga Swiatek needed six attempts to finally get the break in the second set and we might be heading down a similar path.

Caty McNally saves but then offers up a second break point after Swiatek volleys a winner at the end of the 20-shot rally.

Caty McNally leads 30-0 but Iga Swiatek wins three successive points to earn break point.

Swiatek has broken McNally in the second game of both previous sets.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

This time Jack Draper was unable to serve his way out of trouble.

If you thought Marin Cilic was past it, you'd better think again.

Cilic has been magnificent. He's been dominating with his jackhammer serve, as well as forcing Draper well behind the baseline with his deep returns.

Targeting the backhand has proved a wise move, too.

Annabel Croft
Former British number one on BBC Radio 5 Live

Marin Cilic really read the serves well and put a lot of pressure on Jack Draper in the opening set.

Tracy Austin
Two-time Grand Slam champion on BBC TV

If Caty McNally can replicate that first set where she was disruptive, powerful and crafty, that was a nice mix.

It will take real discipline and tactics here from McNally to come up with this win.

Speaking before this match, BBC Sport pundits Todd Woodbridge and Pat Cash discussed Jack Draper's improvement in recent months, particularly his eagerness to finish points quickly at the net.

Image source, Reuters

Wow, that's clinical from Marin Cilic. No messing about this time, a backhand down the line and all Jack Draper can do is watch it fly past him.

The veteran goes a set up against the younger British hope.

Iga Swiatek begins the third set in the exact same way she kicked off the second... with a hold to 15.

If you're into omens maybe there is something in that. Or maybe not.

Marin Cilic prowls at the net to put Jack Draper under pressure and volleys a winner for 0-30.

Then his groundstrokes find the mark time and again, and Draper cracks.

Three break points, which are also set points. Can Draper save himself again?

Gary Rose
BBC Sport at Wimbledon

Iga Swiatek made 17 unforced errors in the first set but cut them out a lot in the second, making just eight.

Her forehand - the aspect of her game that let her down at her last two appearances here - was much better in the second set as well.

She made adjustments to it at Bad Homburg and that helped her to reach the final. It seems they may be working here too.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

We've often talked about the threat of Jack Draper's first serve on the grass - that previous service game shows why.

Looking in a perilous position at 4-3 down, the pace and precision of his opening shot dug him out of bother.

The ability to slide his letfy serve on the ad side and bullet the flatter one down the deuce side paid dividends.

Caty McNally has popped off court for a comfort break so Iga Swiatek is taking the opportunity to practice her serving.

The former world number one will be hoping to build on the momentum of that second set.

"Time," is the call from the umpire are we prepare to get back under way on Centre Court.

Image source, EPA

Marin Cilic throws in a third double fault of the match to drop to 15-30, but the Croat then wins the next three points without reply to take a 5-4 lead in the first set.

Jack Draper slipped near the baseline during one of those points, but there doesn't appear to be any harm done.

Tracy Austin
Two-time Grand Slam champion on BBC TV

I wonder if there is a mental fatigue for Caty McNally.

This is such a big moment and she hasn't had as much experience on the big courts as Iga Swiatek.

This would be the first top 10 win of her career if she could come up with it.

Image source, Getty Images

Brilliantly done by Jack Draper - excellent serving from the Briton and Marin Cilic doesn't really have a sniff on any of the break points.

Deuce.

And in a flash, he wraps up the game.