French Open champion Barty exited the tournament in the last 16 but regained the number one spot after last year's champion Naomi Osaka was also knocked out at the same stage.
Holder Elina Svitolina will face world number one Ash Barty in the end-of-season WTA Finals showpiece on Sunday after they got past Belinda Bencic and Karolina Pliskova respectively in the semi-finals at Shenzhen Bay Sports Centre.
Danielle Collins gave the hostile crowd a roasting after beating local favourite Destanee Aiava in the second round of the Australian Open
Images from Day 6 of the 2021 US Open in New York on Saturday.
Barty survived a first-round scare at the US Open on Monday
Aryna Sabalenka will battle American 19th seed Madison Keys in the final on Saturday looking to become the first woman since Martina Hingis from 1997-99 to win the Australian Open title three times in a row.
The 16-times Grand Slam champion, who has been slightly ill lately, was kept on his toes before racing to victory to set up a meeting with seventh seed Stefanos Tsitsipas.
Images from Tuesday, Day 8 of the 2021 Wimbledon Championships, in London.
Images from Day 1 of the Australian Open in Melbourne on Monday.
Iga Swiatek celebrated her 21st birthday with a cake at the Roland Garros.
Famous faces spotted at the finals:
'I always had this vision that we would all play until we are 35 or something'
Iga Swiatek has been not been at her world-beating best in the months leading up to the U.S. Open but the Pole has both the talent and mentality to lift her game for the final Grand Slam of the year, tennis great Chris Evert said.
Ash Barty's bid to end the host nation's long wait for a homegrown Australian Open champion will begin against Ukraine's Lesia Tsurenko
Former US Open champion Svetlana Kuznetsova has joined a growing list of players who have decided not to play in this year's tournament due to concerns over the COVID-19 pandemic.
Three-times Grand Slam champion Barty received her award three months after retiring from professional tennis at the age of 25.
Serena Williams sounded a warning for her fellow Australian Open contenders with a sleek win
Czech duo Siniakova and Machac win mixed doubles gold
With tears running down her cheeks she then climbed into the stands towards her team, a tradition started by compatriot Pat Cash when he won the men's singles in 1987.
Russia's Anastasia Pavlyuchenkova said on Wednesday that she will not travel to New York to take part in the US Open later this month as organisers could not guarantee her health and safety amid the COVID-19 pandemic. The US Open is set to be played from August 31-September 12 even as the country leads the world with over 4.7 million confirmed COVID-19 cases and more than 157,000 deaths.
Images from Day 3 of the 2025 Australian Open in Melbourne on Tuesday.
Three contenders for the women's singles title at the Australian Open.
Images from Day 5 of the 2021 French Open, in Paris, on Thursday.
The grasscourt major will be held from June 27 to July 10.
Images from Day 9 of the 2020 Australian Open in Melbourne on Tuesday.
Muchova says Grand Slam hunger behind another Sakkari upset in Paris
Ash Barty beat eighth seed Kiki Bertens of the Netherlands 6-3, 3-6, 7-6(7) in Beijing to seal her spot in the final of the China Open on Saturday.
France emerged teary-eyed and triumphant from a weekend of grit and inspiration to claim their first Fed Cup title in 16 years with a 3-2 win on Sunday over hosts Australia.
'When I'm going to be next time in the same situation, I'm going to do some stuff differently because, it was a little bit stressful, and it shouldn't be.'
World number two Aryna Sabalenka will not play at the Indian Wells tournament after testing positive for COVID-19, the 23-year-old said.
Screaming at their box, hitting aces, all the ways players want to raise money to contribute to the relief work for the bushfires.
Novak Djokovic reclaimed the world number one ranking from Carlos Alcaraz
Aryna Sabalenka beat China's Zheng Qinwen 6-3 6-2 to retain the Australian Open women's singles title on Saturday.
Multiple media reports on Monday said the USTA would confirm the Grand Slam tournament would go ahead without fans despite New York City still recording hundreds of new COVID-19 cases every day.
Former French Open champion Jelena Ostapenko is the latest player to withdraw from the US Open, organisers of the tennis Grand Slam confirmed on Monday.
A golden moment for Australian Ashleigh Barty and American CoCo Vandeweghe was tinged with disappointment when tournament officials did not let them speak to the crowd after winning the U.S. Open women's doubles final on Sunday.
Novak Djokovic will begin his quest for a record-extending 10th Australian Open title against Roberto Carballes Baena.
Naomi Osaka's management team told Reuters via email that she would be participating at Flushing Meadows.
According to the trophy, though, there was also an Australian champion in 1976.
A look at the records of Garbine Muguruza and Sofia Kenin ahead of their Australian Open final on Saturday.