12:55 PM ET ESPN News Services MIAMI — Naomi Osaka advanced to the fourth round of the Miami Open for the first time in her career Sunday when qualifier Nina Stojanovic withdrew from their match shortly before the scheduled start because of a right thigh injury. Osaka, ranked No. 2, has won 22 consecutive matches

1:01 PM ET Associated Press MIAMI — Top-ranked Ash Barty advanced to the fourth round at the Miami Open by beating Jelena Ostapenko 6-3, 6-2 Saturday. Barty had a much easier time than in the previous round, when she saved a match point to beat qualifier Kristina Kucova. That was Barty’s first match away from

2:56 PM ET ESPN News Services MIAMI — No. 2-seeded Stefanos Tsitsipas advanced to the fourth round at the Miami Open by beating Damir Dzumhur 6-1, 6-4 Saturday. Tsitsipas, ranked a career-high No. 5, improved to 15-4 this year. He hopes to take advantage of a draw without Novak Djokovic, Rafael Nadal and Roger Federer.

12:20 PM ET Associated Press MIAMI — No. 3-seeded Simona Halep withdrew from the Miami Open before her third-round match Saturday because of a right shoulder injury. “I wanted to come here to give my best and play many matches, but unfortunately I can’t,” Halep said in a statement. Halep earned her 400th career win

5:02 PM ET MIAMI — — Naomi Osaka might never hit a worse shot. Not that it mattered. The world’s No. 2-ranked woman shanked a serve that sailed over her opponent’s head, but shook off the mishit to win her 22nd match in a row Friday, beating Ajla Tomljanović 7-6 (3), 6-4 in the second

6:26 PM ET Associated Press MIAMI — Top-ranked Ashleigh Barty rallied from a big third-set deficit and overcame a match point Thursday to win her opening match at the Miami Open against qualifier Kristina Kucova, 6-3, 4-6, 7-5. Barty, who won the tournament’s most recent title in 2019, trailed 5-2 in the final set. In

7:46 PM ET Associated Press ST. PETERSBURG, Fla. — The WTA is setting up a way that eventually will return its women’s tennis rankings to their usual 52-week system after a “freeze” of sorts was put in place to account for a tour hiatus and scheduling changes during the coronavirus pandemic. It is a complicated

11:18 AM ET Assoicated Press LAUSANNE, Switzerland — Three-time Grand Slam winner Stan Wawrinka has undergone surgery for an injury to his left foot. Wawrinka said Thursday that he would be out “for a few weeks.” The French Open starts May 23; he won at Roland Garros in 2015. “After having some problems in my

5:13 PM ET Associated Press MIAMI — Angry about tennis politics, Vasek Pospisil of Canada staged a tantrum and was docked a point to lose the first set Wednesday in the opening round at the Miami Open. Pospisil, who has been trying to set up a new group to represent men’s professional players, regained his

5:13 PM ET Associated Press MIAMI — Alexei Popyrin built on his recent momentum by beating Feliciano Lopez 6-4, 7-6 (4) Wednesday on the first day of men’s play at the Miami Open. Popyrin, a 21-year-old Australian who won his first ATP Tour title late last month in Singapore, will next play big-serving American Reilly