MELBOURNE, Australia — Carlos Alcaraz reached his 10th career Grand Slam quarterfinal, tied for the most by a men’s player before his 22nd birthday, by advancing at the Australian Open when 15th-seeded Jack Draper stopped playing because of injury after dropping the first two sets Sunday.

The No. 3-seeded Alcaraz was ahead 7-5, 6-1 when Draper decided he couldn’t continue. He had been dealing with physical issues after winning each of his first three matches at Melbourne Park in five sets.

“It’s not the way I want to win a match, to get through to the next round,” Alcaraz said. “Happy to play another quarterfinal here in Australia, but a little bit sad for Jack.”

The two were supposed to spend a week training together in the offseason, but Draper had to turn that chance down because of an injury.

Alcaraz next will meet either 10-time Australian Open champion Novak Djokovic or No. 24 Jiri Lehecka. They were scheduled to meet in the fourth round Sunday night.

“I’m going to watch that, for sure. Where? I don’t know. I have to recover now. My mind is [on] recovering as good as I can with my team,” said Alcaraz, who planned to keep tabs on possible tactical choices for his quarterfinal.

Sunday’s match goes into the books as a victory for Alcaraz, his first against a top-20 opponent at the Australian Open, which he is trying to win for the first time to complete a career Grand Slam. He already has two titles from Wimbledon — by defeating Djokovic in the 2023 and 2024 finals — plus one apiece from the US Open and French Open.

The 21-year-old Alcaraz pulled even with Bjorn Borg, Boris Becker and Mats Wilander for the highest number of major quarterfinal appearances by that age.

Alcaraz’s best run at Melbourne Park was getting to the quarterfinals last year before losing at that stage to Alexander Zverev.

“I’m just happy with the level that I’m playing,” Alcaraz said. “On the court, off the court, I’m feeling really comfortable here in Australia.”

Also Sunday, Tommy Paul ended Alejandro Davidovich Fokina’s run of comebacks at the Australian Open and reached his third Grand Slam quarterfinal with a 6-1, 6-1, 6-1 victory.

Paul, an American seeded 12th at Melbourne Park, needed less than 1½ hours to finish a physically diminished opponent, who sought help from a trainer. There was no turnaround this time for the 66th-ranked Davidovich Fokina, who had won each of his past two matches despite dropping the first two sets in both.

“What he did is unreal the past couple matches. … To do it twice in a row is amazing,” Paul said.

But Paul won nearly twice as many points (85-43) as his Spanish rival.

Paul’s best showing at any Grand Slam tournament was getting to the semifinals at the Australian Open in 2023. He will try to repeat that by getting past either No. 2 Alexander Zverev, a two-time runner-up at majors, or No. 14 Ugo Humbert next.

The Associated Press contributed to this report.