A review of Friday's action in the women's singles at Wimbledon as 15-year-old Coco Gauff continued her dream run by reaching the fourth round.
Cori 'Coco' Gauff continued her incredible Wimbledon debut at the age of just 15 as she came from a set down and survived two match points against Polona Hercog to reach the fourth round.
The teenager star announced herself to a global audience by beating her idol - and five-time Wimbledon champion - Venus Williams in straight sets on her Grand Slam debut on Monday - before overcoming Magdalena Rybárikova on Wednesday.
On this occasion she showed maturity far beyond her years to defeat the experienced Hercog 3-6 7-6 (7) 7-5 and set up a mouthwatering showdown with Simona Halep.
Even if the world number 273, who is the youngest ever player to feature in a main draw at SW19, loses against the 2018 French Open champion, she'll take home prize money of £176,000.
Gauff's serve was under constant threat from the start, saving early break points, before it was finally breached at 4-3 and the world number 60 took the first set thanks to another weak service game where the American sent down three double faults.
The hangover of that continued into the second set as Hercog sealed a third successive break, with Gauff's forehand regularly faltering.
She finally stopped a rot of seven successive games for her opponent with a hold to love, but was unable to make any headway in her return games as Hercog protected her lead with ease.
Hercog's first match point came and went on Gauff's serve at 2-5, with a second arriving a game later when she was serving for the match.
That is when Gauff came to life, breaking Hercog's serve when she had no other option and then finally battered down the obdurate defence of her opponent's backhand slice to take a thrilling tie-break 9/7.
A third set was the last thing the 28-year-old needed as she had a medical timeout and it looked like the youth of Gauff would carry her through as she raced into a 4-1 lead.
Hercog, continuing to draw errors with her backhand slice, fought her way back to 4-4, but, as she applied ice to her legs at the change of ends, the longer it went on the more likely Gauff was to win and that is how it turned out.
She forced Hercog into several errors at 6-5 and won with her first match point as the Slovenian sent a forehand long, sparking some of the most memorable Centre Court scenes in recent times.
She said: "The crowd was amazing, even when I was down a match point they kept cheering me on. It was my first match on Centre Court, Court One is my court but maybe Centre can be as well.
Whatever happens next, her performance will be remembered alongside the likes of Boris Becker's and Martina Hingis' in terms of outstanding teenage stars at the All England Club.
Meanwhile, Caroline Wozniacki called Hawkeye "crazy" and "absurd" after she crashed out to Shuai Zhang in the third round.
The former world number one was beaten 6-4 6-2 on Court Two in a match where she felt let down by technology.
Wozniacki was aggrieved at two baseline calls made by Hawkeye in the second set, which ruled the ball in after being called out by the line judge, both handing Zhang the points after the Chinese challenged.
She vented her frustration to umpire Nacho Forcadell, who agreed that the ball looked out, saying: "It's so ridiculous.
"This is supposed to be a Championships match, this is absurd. It's crazy."
The calls would not have mattered had the Dane been able to build on a start which saw her lead 4-0 in the first set, but the Chinese, who dumped Caroline Garcia out in the opening round, won 12 of the next 14 games.
Third seed Karolina Pliskova and eighth seed Elina Svitolina are through to the second week for just the second time in their career.
Pliskova came through a tricky encounter against Su-Wei Hsieh on Court One, 6-3 2-6 6-4.
Ukrainian Svitolina made hard work of it against Greek Maria Sakkari, eventually winning 6-3 6-7 (1) 6-2 on the seventh match point.
Victoria Azarenka called the warning she received in her straight-sets defeat to Simona Halep as "pathetic".
Azarenka received the sanction after bouncing her racket in the first set of her 6-3 6-1 loss on Centre Court.
It is little surprise the Belarussian was frustrated as she was in the midst of a capitulation that saw her lose 11 of 12 games, having been 3-1 up in the first set.
"I think it was pathetic, to be honest," she said.
"I understand the no tolerance, whatever it was, two metres outside of the court. I didn't damage the court and anything like that.
"It's like you have to be with no single emotion on the court, and that's just not tennis. I'm sorry, but it's not."
Halep described the win in the battle of the former world number ones as her best performance of 2019.
"I'm very satisfied," she said. "I think this was my best match this year. I played really well. I felt actually very confident."
Karolina Muchova defeated 20th seed Anett Kontaveit and Petra Martic won in three sets over Danielle Collins.