INDIAN WELLS, Calif. — Wimbledon champion Angelique Kerber dropped just two games in winning her second-round match at the BNP Paribas Open.
Kerber beat Yulia Putintseva 6-0, 6-2 on Saturday, breaking serve to open the match on her way to winning the first 10 games in a row.
Kerber, seeded eighth, converted 93 percent of her first serves and moved on to a third-round match against qualifier Natalia Vikhlyantseva.
Other seeded winners were: No. 9 Aryna Sabalenka, No. 11 Anastasija Sevastova, No. 21 Anett Kontaveit and No. 24 Lesia Tsurenko.
No. 30 Laslo Djere won on the men’s side.
The world’s top-ranked players – Novak Djokovic and Naomi Osaka – had night matches at Indian Wells Tennis Garden.
There were several upsets on Day 4 of the combined ATP-WTA event.
No. 9 Stefanos Tsitsipas, who lost to Roger Federer in both the Australian Open semifinals and the final in Dubai last week, was ousted by Felix Auger-Aliassime 6-4, 6-2.
Also losing on the men’s side were No. 11 Borna Coric and No. 23 Alex de Minaur.
In the women’s draw, No. 17 Madison Keys, No. 26 Carla Suarez Navarro and No. 28 Donna Vekic lost.
NEW YORK (AP) Defending champions Naomi Osaka and Novak Djokovic are the No. 1 seeds for singles play in the U.S. Open.
Osaka, who beat Serena Williams in last year’s final for her first Grand Slam title, recently regained the top spot in the WTA rankings from Ash Barty. Barty is the No. 2 seed, followed by Karolina Pliskova, Wimbledon champion Simona Halep and Elina Svitolina.
Williams was given the No. 8 seed Wednesday by the U.S. Tennis Association. Madison Keys, the 2017 runner-up who just won the Western & Southern Open, rounds out the top 10 seeds.
Djokovic, bidding for his second straight major title, is followed by fellow past U.S. Open champions Rafael Nadal and Roger Federer. Dominic Thiem is No. 4 and surging Daniil Medvedev, who won the title outside Cincinnati last week in what was his third straight tournament reaching the final, is fifth.
The draw will be held Thursday and main-draw play begins Monday.
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NEW YORK (AP) Wimbledon semifinalist Barbora Strycova was knocked out of the Bronx Open on Tuesday with a 3-6, 6-2, 6-1 loss to Bernarda Pera.
Strycova was the No. 3 seed and was playing her opening match in the new WTA tournament after receiving a first-round bye. But the 33-year-old Czech, the oldest player in the field, was handled easily by the American wild-card entrant over the final two sets on a hot afternoon after winning the first set.
Pera will play No. 5 Katerina Siniakova, who had rolled to a 6-0, 3-0 lead over Anastasia Potapova before the Russian qualifier retired.
The other quarterfinal matchup set up Tuesday will feature Camila Giorgi, who outlasted Andrea Petkovic 3-6, 7-5, 7-6 (3), against Alize Cornet, who was leading 7-6 (5), 4-0 when Zhu Lin had to retire with an injury.