Coco Gauff drops a set but reaches the Australian Open quarterfinals. Sabalenka wins, too

MELBOURNE, Australia — Coco Gauff’s consecutive-set streak ended at the Australian Open. Her bid for a second Grand Slam title continued on Sunday with a 5-7, 6-2, 6-1 comeback victory over Belinda Bencic in the fourth round.

Afterward, Gauff drew a broken heart on the lens of a courtside TV camera with the message, '' RIP TikTok USA,'' a reference to the ban of the popular app back home.

Until Sunday, Gauff — a 20-year-old from Florida who won the 2023 U.S. Open as a teenager — had collected all 16 sets she'd played this year and 24 of her past 25 dating to the end of last season, which included a title at the WTA Finals.

''In the first set, she played great tennis, and it was tough for me to be on the offense,'' Gauff said after grabbing the last five games against Bencic. ''I just played more aggressively in the second set and then also the third set.''

The tournament's No. 3 seed was unable to control her shots well enough at the start against Bencic on a steamy early afternoon in Rod Laver Arena, where the temperature hit 90 degrees Fahrenheit (32 Celsius) and the blue playing surface was bathed in sunlight.

Spectators seated along the sides of the court fanned themselves; Gauff sought relief from cool air provided at the players' sideline benches and pressed an ice pack against her face during one break in the action.

As trouble mounted late in the first set, in which Bencic broke in each of Gauff's last two service games — one of which ended with a pair of double-faults — the American kept missing the mark, compiling a whopping 20 unforced errors.

But she recalibrated after the hour-plus first set, accumulating points in bunches, repeatedly hammering returns of serve and doing a much better job of targeting spots from the baseline. In sum, she was very much back to her best self. Not only did Gauff cut her unforced errors in half in the second set, but she also put together a 17-2 edge in winners over that span.

By the end, Gauff was in total control, and she motioned to the crowd for more noise after a reflex volley to win a point in the final game.

''Obviously there's still a lot to go for me to accomplish my goal,'' Gauff said, ''but I can say that I'm proud of myself and happy with how I performed.''

Part of the problem in the early going, to be sure, was that Bencic is a terrific ball-striker. Her current ranking of No. 294 is misleading: The 27-year-old from Switzerland, who reached a career best of No. 4, only returned to action in October from maternity leave.

Her best past results have arrived on hard courts, including a run to the semifinals of the U.S. Open in 2019 and a singles gold medal at the Tokyo Olympics in 2021. She's now 0-3 in fourth-round matches at Melbourne Park, though, losing previously to International Tennis Hall of Fame member Maria Sharapova in 2016 and to eventual champion Aryna Sabalenka two years ago.

The winner of Gauff vs. Badosa will play either No. 1 Sabalenka, who is seeking a third consecutive Australian Open title, or No. 27 Anastasia Pavlyuchenkova, the 2021 French Open runner-up.

The men's quarterfinals Tuesday will be Novak Djokovic vs. Carlos Alcaraz, and No. 2 Alexander Zverev vs. No. 12 Tommy Paul. Djokovic, who has won 10 of his 24 Grand Slam titles at Melbourne Park, beat No. 24 Jiri Lehecka 6-3, 6-4, 7-6 (4), while Alcaraz advanced when No. 15 Jack Draper quit because of a hip problem after two sets.

Zverev, a two-time major runner-up, defeated No. 14 Ugo Humbert 6-1, 2-6, 6-3, 6-2; Paul, a semifinalist in Australia in 2023, eliminated Alejandro Davidovich Fokina 6-1, 6-1, 6-1.

Sabalenka stretched her winning streak in Melbourne to 18 matches by defeating 14th-seeded Mirra Andreeva 6-1, 6-2, and Pavlyuchenkova beat No. 18 Donna Vekic 7-6 (0), 6-0.

Martina Hingis, from 1997 to 1999, was the last woman with three straight championships in Australia.

One more win for each and they'll have a rematch in that round. They also met in the U.S. Open final that Gauff won two seasons ago.

''For me, every match is new opportunity. It's a new game. You know, doesn't matter what happened in the past,'' Sabalenka said. ''For me, it's about staying in the moment and focusing on myself and on bringing my best game, because I know that if I'll be able to bring my best game, I know that I can get the win. So I'm trying to focus on myself.''

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