MELBOURNE: Serena Williams's bid for a record-equalling 24th Grand Slam title was brought to a halt in sensational style at the Australian Open Wednesday by Karolina Pliskova, as Lucas Pouille reached his first ever major semi-final.
The American great had beaten world number one Simona Halep in the fourth round but folded against the tall Czech seventh seed, who saved four match points before winning 6-4, 4-6, 7-5 under the hot Melbourne sun.
Her reward is a clash against Japan's Naomi Osaka for a place in the final, after the Japanese fourth seed brutally swatted aside the injured Elina Svitolina 6-4, 6-1.
Pouille also made the last four after beating power-serving Canadian Milos Raonic 7-6 (7/4), 6-3, 6-7 (2/7), 6-4, becoming the first Frenchman to do so at Melbourne Park since Jo-Wilfried Tsonga in 2010.
Awaiting him is the winner of the night match on Rod Laver Arena between world number one Novak Djokovic and Japan's Kei Nishikori.
It was a gut-wrenching defeat for Williams, who battled back from a set down and was leading 5-1 in the third and serving for the match, only to throw it away with some wild shots as frustrations bubbled to the surface.
"There's nothing I did wrong on those match points. I stayed aggressive. She just literally hit the lines on some of them," said the dumbfounded 37-year-old, who rolled an ankle but refused to blame it for the defeat.
Since returning last year from giving birth, Williams has made four unsuccessful attempts to match Margaret Court's long-time standing 24 Grand Slam titles, and the wait continues with the French Open in May her next chance.
"The big picture for me is always winning," she added. "I'm not going to sit here and lie about that. It hasn't happened yet, but I feel like it's going to happen."
For Pliskova, it is only her third semi-final at a major.
She made the last four at Roland Garros in 2017 and the US Open a year earlier, where she beat Williams before losing the final to Angelique Kerber.
"I was almost in the locker-room but now I am standing here as a winner. It is a very good feeling," she said after depriving Williams of a US Open final rematch with Osaka.
Asked about facing Osaka next, Pliskova replied: "She's dangerous but nobody is more dangerous than Serena."
A focused Osaka rolled past Ukraine's Svitolina, who was troubled by neck and shoulder problems.
The Ukrainian needed a similar medical timeout during her third-round match, but it was nevertheless a serious statement from the steely-eyed Osaka, who was playing the sort of tennis which drove her to the US Open title.
"I tried to be consistent, it's unfortunate that she got injured but playing against her even when she was injured was still really tough," said the usually bubbly 21-year-old, who was completely focused on court.
"I just had one goal, to try as hard I can and not get angry. I didn't do that really well in the last two rounds and I did that today so I'm really happy with the way I played."
The win ensured she became the first Japanese woman in the final four since Kimiko Date in 1994.
Svitolina, who has now failed to go further than the quarter-finals four times at Grand Slams, said she had been feeling her injury throughout the tournament, but didn't want to use it as an excuse.
"Unfortunately I couldn't produce 100 percent the game that I wanted. But in the end, she was just playing better today," she said.
Pouille, the 28th seed, had never won a match at Melbourne Park before this year but has recruited 2006 Australian Open champion Amelie Mauresmo to his team and said it was paying off.
"Last year I lost a bit of joy being on the court," he said after beating former world number three Raonic, seeded 16 this year.
"I started a new adventure with my team, with Amelie. I enjoy being on the court again and that is the most important."