MELBOURNE, Australia (AP) — The Latest on Saturday at the Australian Open (all times local):
Seven-time champion Serena Williams has advanced to the fourth round at Melbourne Park with a 6-2, 6-1 win over Dayana Yastremska.
The 16th-seeded Williams has now won 20 consecutive sets at Melbourne Park, having not dropped a set in her 2017 title run and winning three rounds here this year in straight sets. She did not play here in 2018 following the birth of her daughter.
Yamstremska received treatment during a medical timeout after she turned her right ankle while stretching to return a shot in the fifth game of the second set.
Williams won her 84th match at Melbourne Park, which is more than any other woman in Australian Open history. She has lost just 10 matches in 18 appearances at the tournament.
Williams, attempting to win a record 24th Grand Slam singles title, will next play either her sister Venus or top-seeded Simona Halep, who play later Saturday.
Sixth-seeded Elina Svitolina came back from 3-0 down in the third set to beat Zhang Shuai 4-6, 6-4, 7-5 in the third round at Melbourne Park.
Both players took medical timeouts during the almost three-hour match.
Zhang took a medical time out after the second set ended and again after the fifth game of the final set when Svitolina was trailing 3-2. Zhang had received frequent treatment between games as well for a right shoulder or back ailment.
Svitolina broke Zhang's serve in the sixth game to level the set at 3-3, then fended off two break points in the following game before holding to lead 4-3.
Svitolina served for the match at 5-4 but Zhang broke to extend it. Svitolina hit a backhand passing shot to clinch the 11th game and take a 6-5 lead, then broke Zhang's serve in the final game, clinching the 2-hour, 55-minute match when Zhang hit a forehand into the net.
Svitolina will play either Elise Mertens or Madison Keys in the fourth round.
In the year he's celebrating the 50th anniversary since he completed the Grand Slam of winning all majors in one season, tennis great Rod Laver has taken to social media to praise teenager Alex de Minaur for his Australian Open performance against Rafael Nadal.
A photograph he posted on his Twitter feed on Saturday, a day after de Minaur was beaten in three sets by Nadal in the third round, showed Australian Davis Cup captain Lleyton Hewitt with de Minaur on the day the teenager was first selected for Australia.
"Alex, You've come a long way since this pic was taken at the AO last year on your making the Davis Cup team. I remember a teenage Rafa going down to Lleyton in the 3rd round back in 2004. And look what Rafa's done since," Laver, known as Rocket, said. "You're definitely on the right road."
De Minaur can take some heart from the score of that Hewitt-Nadal match. Hewitt also won in straight sets, although the first two were in tiebreaks. De Minaur only won eight games in his match against Nadal on Friday. Nadal has won 17 major titles.
U.S. Open champion Naomi Osaka overcame a frustrating first set and a tricky rival to reach the fourth round of the Australian Open with a 5-7, 6-4, 6-1 win over Hsieh Su-wei.
The fourth-seeded Osaka got a warning from the umpire for smashing her racket onto the court in the first set and was down a break in the second before gaining control of the match.
The 33-year-old Hsieh, who plays with a double-handed grip on both sides and uses a mixture of spin and slice and drop shots to unsettle her rivals, reached the fourth round last year here and at Wimbledon, where she beat top-ranked Simona Halep.
U.S. Open champion Naomi Osaka has started her third-round match at the Australian Open against Hsieh Su-wei on Margaret Court Arena.
Serena Williams will continue her bid for an eighth Australian title and an Open-era record 24th Grand Slam singles title overall when she plays Dayana Yastremska later Saturday on Rod Laver Arena.
A win for Williams on day six of the tournament will set up a fourth-round match against either her older sister, Venus, or top-ranked Simona Halep.
Top-ranked Novak Djokovic headlines the men's draw, and has a night match against rising Canadian Denis Shapovalov.
The forecast is for a mild, sunny day in Melbourne with a top temperature of 22 Celsius (72 F).
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