The 12-time French Open champion unhappy with schedule.
Images from the quarter-final matches played at the Australian Open at Melbourne Park on Tuesday
The fifth-seeded Ukrainian reached her second straight Grand Slam semi-final after also making the last four at Wimbledon in July.
Of the top 15 on Forbes' list of best-paid female athletes, 12 were tennis players. Indian badminton player PV Sindhu came in tied for 13th ($5.5 million), with Thai golfer Ariya Jutanugarn ($5.3 million) rounding out the top 15.
Here are five things to watch for on day eight of the US Open on Monday.
Novak Djokovic will begin his Australian Open title defence against Frenchman Jeremy Chardy, while reigning women's champion Sofia Kenin meets wild card Maddison Inglis, following the draw for the year's first Grand Slam on Friday.
This year's Australian Open will be allowed to admit up to 30,000 fans a day, around 50% of usual capacity, amid the COVID-19 pandemic.
World number one Angelique Kerber crashed out of the Hong Kong Open in the quarter-finals on Thursday, the German slumping to a shock 6-3, 6-1 defeat to Australia's Daria Gavrilova at Victoria Park.
Nadal, Djokovic, Murray, Wawrinka all will be in action at Roland Garros on Wednesday
Sania Mirza stormed into the quarter-finals of mixed doubles event as she and her partner Ivan Dodig of Croatia notched up a commanding win over their opponents at the French Open on Sunday.
Also in action on the first day at Roland Garros is men's second seed Alexander Zverev who meets Ricardas Berankis of Lithuania on Court Suzanne-Lenglen.
World number one Novak Djokovic saw off Canadian Denis Shapovalov 6-3, 6-4 to win his fifth Paris Masters title on Sunday in a warning to his rivals ahead of the ATP Finals, while Ashleigh Barty finished the season in style by beating defending champion Elina Svitolina 6-4, 6-3 to add the WTA Finals title to her end-of-year world number one rank.ing
The US Open organisers (USTA) are creating a bio-secure 'bubble' in New York to hold the tournament from Aug. 31 without spectators
Olympic champion and world number one Serena Williams tumbled out of the Rio de Janeiro singles competition in the third round on Tuesday after a shock defeat to Ukraine's Elina Svitolina.
More sporting bodies sanctioned Russian and Belarusian athletes on Tuesday over Russia's invasion of Ukraine
Top seed Simona Halep came back from 4-1 down in the deciding set to beat Elina Svitolina 6-3 3-6 6-4 in the Qatar Open semi-final on Friday, marking her first victory over the Ukrainian in nearly two years.
Osaka has had to mix things up during a grinding progression to the last eight at Melbourne Park
Images from Day 9 of the 2021 US Open in New York on Wednesday.
Grand Slam champions Daniil Medvedev from Russia and Belarusian Victoria Azarenka will not be able to participate in the June 27-July 10 tournament.
Unseeded Elise Mertens has extended a breakout year to storm into the semi-finals of her Australian Open debut by keeping a cool head and honing her technical skills.
Factbox on Japan's Naomi Osaka, who beat Victoria Azarenka of Belarus 1-6, 6-3, 6-3 to win the US Open title on Saturday.
Top seed Serena Williams and her older sister Venus led a foursome of American women into the Australian Open fourth round on Saturday.
British qualifier Emma Raducanu beat Canada's Leylah Fernandez 6-4 6-3 in a battle of two unseeded teenagers to win the U.S. Open women's title on Saturday.
Naomi Osaka has sacked her second coach in seven months, splitting with Jermaine Jenkins
Former champion Ana Ivanovic was at her brilliant, aggressive best on Tuesday. The seventh seed swept aside Ukraine's Elina Svitolina 6-3, 6-2 to storm into the French Open semi-finals.
Serena Williams squandered four match points and blew a 5-1 lead in the decider to fall to seventh seed Karolina Pliskova 6-4 4-6 7-5 in the quarter-finals of the Australian Open.
Britain's Johanna Konta withstood a fightback by Madison Keys and third seed Agnieszka Radwanska beat Ukraine's Elina Svitolina on Saturday to reach to the China Open final.
Wimbledon debutant Eubanks ends Tsitsipas's challenge in fourth round.
Aryna Sabalenka expressed more concern over the vaccine than her quarterfinal opponent No 1 Ash Barty
Images from the women's singles quarter-finals at Wimbledon on Tuesday.
Three women in the field have topped the world rankings this season, incumbent Simona Halep and her predecessors Garbine Muguruza and Karolina Pliskova, but none of them have been able to kick on and cement their place as the tour's dominant player.
Indian tennis stars enjoyed a successful start in the US Open as veteran Leander Paes entered the mixed doubles second round while Rohan Bopanna also won his opening tie in the men's doubles event in New York.
Ana Ivanovic recovered from an awful start to beat Kaia Kanepi at the Brisbane International on Thursday and remain on track for a glamour meeting with Maria Sharapova.
Images from Day 10 of the 2020 French Open, at Roland Garros, in Paris.
Flavia Pennetta, Italy's newly-crowned US Open women's singles champion, will represent Mumbai Masters in this year's Champions Tennis League along with 1996 Wimbledon men's champion Richard Krajicek of the Netherlands following the players' draft, in Mumbai, on Wednesday. The second edition of the Champions Tennis League, the brainchild of former India Davis Cup captain Vijay Amritraj, will be played from November 23 to December 6, an increase of four days from last year's ten-day duration, announced Amritraj at a media conference after the players' draft.
Britain's Johanna Konta faces an anxious 24-hour wait before discovering whether she will make her debut at the WTA Finals in Singapore.
Top seed Agnieszka Radwanska put on a dominant performance against double defending champion Petra Kvitova to ease into the final of the Connecticut Open with a 6-1, 6-1 triumph on Friday.
Petra Kvitova moved closer to a third straight Connecticut Open crown after defeating Ekaterina Makarova 6-3, 6-1 to reach the semi-finals on Thursday.
American Stephens stayed calm and saw off an increasingly agitated Angelique Kerber in the winner-takes-all night match to complete round-robin play with a spotless 3-0 record after she wrapped up a 6-3, 6-3 victory against the German.
Earlier in the day, Karolina Pliskova became the first woman to advance when the big-hitting Czech curbed her attacking instincts to beat compatriot Petra Kvitova 6-3, 6-4 and record her second win against a single loss in White Group play.