Karolina Pliskova News
Pliskova, who has won 16 career singles titles, hired Bajin in November 2020 and the 38-year-old German coach helped her to the 2021 Wimbledon finals.
Pan Pacific Open: Naomi Osaka pulls out with stomach pain; Karolina Pliskova latest big name casualty
The 24-year-old Japanese was set to play Brazil's Beatriz Haddad Maia in the second round later in the day but withdrew saying her "body won't let" her compete.
Karolina Pliskova had crashed out in the second round at Wimbledon this year, losing to British wildcard Katie Boulter, ranked 131 in the world.
Pliskova's best finish at Melbourne Park was the semifinals in 2019, where she lost to eventual champion Naomi Osaka after beating Williams in the quarterfinals.
Muguruza's victory in her final round-robin contest in the eight-woman season finale in Guadalajara denied Karolina Pliskova a place in the knockout phase
To qualify for the semi-finals for the second time in her career, Garbine Muguruza (1-1) needs a win on Sunday against Kontaveit (2-0) and a Krejcikova victory over Pliskova (1—1).
Anett Kontaveit continued her late-season surge, notching her 12th straight WTA match win as she assured herself of finishing in the top two of her group
Pliskova is playing the WTA Finals for the fifth time, having reached the semifinals in 2018 and '19. The 2020 tournament was cancelled.
Sabalenka, who opens her campaign against Spanish seventh seed Paula Badosa on Thursday, said she is unfazed by the pressure that comes with her top seed status.
The increasingly unpredictable nature of women's tennis will be on display when a severely depleted field brings the curtain down on a tumultuous 2021 season at the WTA Tour Finals.
World No 2 Medvedev moves on to the round of 16 where he will face Bulgaria's Grigor Dimitrov, who cruised past American Reilly Opelka.
Medvedev didn't face a break point, and converted three of his seven break chances against the American to wrap things up in 72 minutes.
The 29-year-old Czech player was set to be the top seed at the WTA tournament played in the eastern Czech city of Ostrava on 20-26 September.
The 18-year-old became the first player to emerge from qualifying to win a Grand Slam tournament when she beat another teenager, 19-year-old Canadian Leylah Fernandez, 6-4, 6-3 on Saturday.
Raducanu, only the fourth qualifier to reach a Grand Slam semi-final, made the Swiss 11th seed the highest-rated victim of her young career in making history on the New York hardcourts.
Raducanu, who would be the first qualifier to ever reach a Grand Slam final, made her Slam debut this year at Wimbledon and reached the fourth round.
Djokovic beat Berrettini in the quarterfinals of the French Open in June, then came back after dropping the first set to top the Italian again at the All England Club in July.
Reigning Wimbledon champion Barty won 11 of 14 games after dropping the first set, only for Rogers to capture five of the last six games for a shocking 6-2, 1-6, 7-6 (7/5) triumph.
US Open 2021: Novak Djokovic launches calendar Slam quest with win; qualifier stuns Pablo Carreno Busta
Fourth-seeded Zverev, coming off Japan gold and a title two weeks ago at Cincinnati, dispatched American Sam Querrey 6-4, 7-5, 6-2 in a first-round match at Arthur Ashe Stadium.
US Open 2021: Novak Djokovic faces potential Wimbledon final rematch against Matteo Berrettini in quarter-finals
Under a men's singles draw released Thursday by the US Tennis Association, the 34-year-old Serbian top seed was placed in a draw quarter that could see him meet Australian fourth seed Alex de Minaur in the fourth round.