Hercog holdspublished at 19:26 British Summer Time 5 July 2019
Hercog 6-3 6-7 (7-9) 1-1 Gauff*
Gauff shakes her hand in frustration as she hits the ball into the net and Hercog holds to love.
Coco Gauff, 15, beats Polona Hercog to reach Wimbledon fourth round
Qualifier loses first set, saves match points in second, wins 3-6 7-6 (9-7) 7-5
American to face former world number one Simona Halep in last 16
Andy Murray & Serena Williams mixed doubles match postponed
Djokovic through in four sets but fourth seed Anderson goes out
Pliskova wins but Wozniacki loses
Jamie Murray wins mixed doubles but loses men's match
Becky Grey, Emma Sanders and Harry Poole
Hercog 6-3 6-7 (7-9) 1-1 Gauff*
Gauff shakes her hand in frustration as she hits the ball into the net and Hercog holds to love.
NOOO!
Awful news for fans with Centre Court or Court One tickets today. Andy Murray and Serena Williams' mixed doubles match has been POSTPONED.
That means they will not be playing today and will instead be in action at some point tomorrow.
*Hercog 6-3 6-7 (7-9) 0-1 Gauff
This match has hit the two hour mark.
Given that Gauff is only allowed to play 10 tournaments at professional level between her 15th and 16th birthday, this match could turn out to be the longest she's played for a while... or ever?
*Hercog 6-3 6-7 (7-9) 0-1 Gauff
Gauff doesn't look put off by that break in play. In fact, she looks very sharp as she comes to the net and hits a winning volley.
Or maybe not... the American serves a double fault, her sixth of the match.
But Hercog slams a forehand into the net and Gauff gets off the mark.
Hercog 6-3 6-7 (7-9) 0-0 Gauff*
Tracy Austin
Two-time Grand Slam champion on BBC TV
The eyes of the world are on young 15-year-old Coco Gauff.
Simona Halep awaits the winner.
Hercog 6-3 6-7 (7-9) 0-0 Gauff*
Right then. Is this going to be a Wimbledon comeback for the history books?
We're back under way.
#bbctennis or text 81111 (UK only)
Alice Stainer: It can't be denied that @CocoGauff, external is SOMETHING ELSE. When I came to the match, she looked as though she was down & out, though doing her best & keeping her composure. Amazing how she's managed to turn it around. Just goes to show you should never say die.
Hercog 6-3 6-7 (7-9) 0-0 Gauff
Hercog is back out on the court. She went for a bathroom break, but may have a medical break coming up at the next change.
Hercog 6-3 6-7 (7-9) 0-0 Gauff
Gauff puts a jacket on and wraps a towel round her as she waits for Hercog to return to the court.
A big break is not ideal when all the momentum is going your way.
Hercog 6-3 6-7 (7-9) 0-0 Gauff
Tracy Austin
Two-time Grand Slam champion on BBC TV
I think the momentum goes Coco's way. Hercog was in control, had two match points and let it slip. She doesn't have much experience at this stage in a major. I'm just wondering what is going on with her?
Hercog 6-3 6-7 (7-9) 0-0 Gauff
Hercog has got the trainer out and is doing some leg stretches. She did not need a third set.
The doctor has come on now and Hercog is leaving the court.
#bbctennis
Karl Bristow: Good grief, the Gauff train is still rolling! What an edgy final rally, compelling viewing!
Kassim Patel: Gauff a real prodigy in tennis! No doubt a future grand slam winner.
Orry Jardine: Some match this. Coco Gauff’s defending in that set was brilliant. Well deserved to be 1 set all, should be an interesting final set
Hercog 6-3 6-7 (7-9) 0-0 Gauff
The hill is absolutely packed with people watching this one.
Everyone wants to be a part of history.
Katie Falkingham
BBC Sport at Wimbledon
Coco Gauff's mum couldn't watch that tie-break, sitting there with her head bowed. You could cut the tension with a knife. And that was just in our commentary box!
And then she wins the set! Her dad goes mental, jumping to his feet and putting a foot on the barrier in front as he punched the air HARD.
Once again, SHE'S 15!
Hercog 6-3 6-7 (7-9) 0-0 Gauff
Simon Reed
BBC Sport commentator at Wimbledon
What an extraordinary rally.
Hercog 6-3 6-7 (7-9) Gauff
Coco loco!
What is this 15-year-old doing?!
The best rally of Wimbledon so far! Both players seem to stop playing, waiting for the other to make a mistake. But Gauff decides she's had enough of that and comes to the net with a brave forehand to win it.
She beats her chest (great celebration, well played) and her mum is on her feet screaming her lungs out.
#bbctennis or text 81111 (UK only)
Jeremy Walker: This tie-breaker is never going to end!
*Hercog 6-3 6-6 (7-8) Gauff
Wow. The crowd is feeling every single shot. There's a big groan as Gauff hits a backhand long. Back even.
But Hercog swipes a backhand into the net and Gauff gets another set point.
Hercog 6-3 6-6 (6-7) Gauff*
Gauff is playing with fire. She spins a backhand onto the baseline and Hercog challenges. It's in!
What was Hercog thinking? A second set point.
*Hercog 6-3 6-6 (6-6) Gauff
Tracy Austin
Two-time Grand Slam champion on BBC TV
This crowd is living every moment with these two young ladies.