MELBOURNE, Australia: As well as she played at the start of her Australian Open quarterfinal, Serena Williams suddenly was struggling early in the second set.
After one mistake against No. 2 seed Simona Halep who won the last time they played each other Williams pointed at her racket strings and made a sour face, as if to make clear it wasnt truly her own fault. After another, Williams looked up at her guest box with palms up and asked, What is happening?
That dismay did not last long. Williams recalibrated her shots, claimed the last five games and overcame 33 unforced errors to beat Halep 6-3, 6-3 on Tuesday to return to the final four at Melbourne Park for the first time since she won the tournament in 2017 for her most recent Grand Slam title.
I just realized I was making a lot of unforced errors in those games that I lost. And I knew that I had an opportunity to play better, said Williams, now two wins away from claiming her record-tying 24th major singles championship. So I was just like, Just stay in there. You just can keep going. And thats what I just did.
She set up a showdown against No. 3 Naomi Osaka, a three-time Slam champ who will carry a 19-match winning streak into Thursdays semifinals.
Shes Serena, Osaka said. I feel really intimidated when I see her on the other side of the court.
This will be their fourth career matchup all on hard courts and Osaka leads 2-1, the most memorable encounter, of course, coming in the final of the 2018 U.S. Open.
On that night, Williams got into an argument with the chair umpire after her coach, Patrick Mouratoglou, was caught trying to relay a signal thats not allowed in Grand Slam play and wound up being docked a game. Osakas victory, which earned her first major title, closed with thousands of fans filling Arthur Ashe Stadium with boos and both of the athletes were in tears during the trophy ceremony.
There were no spectators Tuesday in Rod Laver Arena, because theyve been banned from the tournament during a five-day government lockdown in response to a local rise in COVID-19 cases (the applause and other crowd noise TV viewers are hearing is being added to the broadcast feed and isnt actually happening in the stadium).
Displaying the improved footwork that Mouratoglou says has been a point of emphasis, the 39-year-old Williams would swing at balls while they were still on the rise, trying to jump on shots and take time away from Halep.
I know that, throughout my career, speed has been one thing thats been super good in my game, Williams said.
On the forehand side, especially, Williams struck point-ending strokes or put on pressure that prevented Halep from managing to do the same.
By the end of the opening set, Williams held a whopping 14-4 edge in winners. Indeed, she was at her best in just about every possible way for that set, anyway.
The serves at up to 124 mph (200 kph). The returns that included a cross-court forehand winner on Haleps very first service point, a stinging shot about which Williams said with a chuckle: I just saw it, and it looked like a donut, and I went for it.
She won the point on each of her first six trips to the net.
But then things went awry for Williams in just about every possible way for a few games, anyway.
She fell behind 2-0 in the second set with 10 unforced errors in that span alone. A double-fault here. A wild volley there. Then Halep led 3-1.
Thats when Williams put a stop to her slide. A key game came at 3-all, when Williams converted her sixth break chance on a 13-stroke exchange in which she ran wide of the double alley on her forehand side to extend the point, eventually winning it when Halep dumped a forehand into the net.
The best match Ive played this tournament, for sure,” said Williams, who let out a big smile when it ended.
That 2019 loss to Osaka in Flushing Meadows is part of an 0-4 record for Williams in Grand Slam finals since her last championship. Another one of those defeats came at Wimbledon in 2019 against Halep, who made an unheard-of total of three unforced errors in a performance she described as the best day, actually, of my life.
If Williams is going to get to title No. 24 on Saturday, she could end up needing to have beaten each of the top three players in the rankings: No. 2 Halep, No. 3 Osaka and, perhaps in the final, No. 1 Ash Barty, whose quarterfinal against No. 25 Karolina Muchova is Wednesday.
The other remaining quarterfinal is between two Americans, No. 22 Jennifer Brady and unseeded Jessica Pegula.
In mens action, 114th-ranked qualifier Aslan Karatsev of Russia became the first man in the professional era to get to the semifinals in his first Grand Slam appearance, defeating No. 18 seed Grigor Dimitrov 2-6, 6-4, 6-1, 6-2. Karatsev next faces the winner of Tuesday nights quarterfinal between eight-time Australian Open champion Novak Djokovic and No. 5 Alexander Zverev.
Osaka overpowered 71st-ranked Hsieh Su-wei of Taiwan 6-2, 6-2, helped by serves that reached 122 mph (196 kph). She delivered seven aces, claimed 23 of 25 first-serve points and wound up with 24 total winners to just 14 unforced errors.
At 35, Hsieh used her tricky, two-handed shots off both sides to become the oldest woman in the professional era to make her Grand Slam quarterfinal debut. But she was no match for Osaka, who knew what was potentially in the offing with a victory.
Normally I never look at my draw, Osaka said. But everyone has told me about my draw here, so I kind of had no choice but to know who my next opponent is. Its definitely going to be really fun.
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