The state of Victoria where the Grand Slam is held said this week that it would prevent unvaccinated players from entering its territory, sparking concerns that some players including Novak Djokovic may miss the tournament.
Silicon Valley Classic: Daria Kasatskina knocks out top-seeded Belgian Elise Mertens in straight sets to enter final
Kasatkina, ranked 31st in the world and seeded fourth, notched her third win in four meetings against the 17th-ranked Belgian and gave herself a shot at a third WTA title of 2021 after victories at St. Petersburg and in the Phillip Island Trophy.
Wimbledon 2021: Croatia's Nikola Mektic and Mate Pavic clinch men's doubles title; Hsieh Su-wei, Elise Mertens win women's doubles
For Pavic, it was a third major victory after the 2018 Australian Open with Oliver Marach and the 2020 US Open partnering Bruno Soares.
Madrid Open: Dominic Thiem beats Marcos Giron to reach third round; Anastasia Pavlyuchenkova edge past Jennifer Brady
World number 10 Matteo Berrettini saw off his fellow Italian Fabio Fognini, winning 6-3, 6-4 to book a third-round spot.
Miami Open: Naomi Osaka, Ashleigh Barty, Bianca Andreescu in quarter-finals; Stefanos Tsitsipas into last-16
The world's top-ranked player Ashleigh Barty has reached the Miami Open quarter-finals, getting there by holding off 14th-seeded Victoria Azarenka of Belarus 6-1, 1-6, 6-2
Medvedev failed to convert three match points in the second set after taking a 5-2 lead. An hour later the Russian was still playing, and on a humid afternoon with temperatures in the mid 80s, he paid a price.
Second-ranked Osaka, the reigning US and Australian Open champion, will next face the winner of a later match between 16th seed Elise Mertens and 22nd-seeded Anett Kontaveit.
Dubai Open: Garbine Muguruza sees off Elise Mertens in semi-final clash, Barbora Krejcikova beats Jil Teichmann
The former world number one needed seven match points to overcome a stubborn Elise Mertens 6-4, 7-6 (7/5) in the Dubai semi-finals on Friday, and is now into her second final in as many weeks, having placed runner-up in Doha six days ago.
Dubai Open: Garbine Muguruza fights back from set down to beat Aryna Sabalenka, to face Elise Mertens
The Spaniard, a runner-up in Doha last week, bounced back from a set down to eliminate the third-seeded Sabalenka 3-6, 6-3, 6-2 and set up a showdown with Belgium’s Elise Mertens.
Australian Open 2021: Daniil Medvedev finally wins five setter, frustrated Karolina Pliskova knocked out
The win stretched Medvedev's winning streak to 17 matches, including his successful run to the title at the 2020 season-ending ATP Finals.
Australian Open 2021: Sofia Kenin's title defence ends early; Rafael Nadal, Stefanos Tsitsipas through to third round
Delivering 10 aces, Kanepi powered her way past the No. 4-seeded Kenin, overwhelming the 2020 champion 6-3, 6-2 in just 64 minutes
Yarra Valley Classic: Serena Williams beats Tsvetana Pironkova in straight sets; Ashleigh Barty, Naomi Osaka advance
Williams, 39, has been in belligerent form at the Yarra Valley Classic and overpowered the Bulgarian with a 6-1, 6-4 victory in 74 minutes.
The 22-year-old Sabalenka finished the season in style with a straight-sets victory over her doubles partner Elise Mertens in Sunday's final in Austria.
Belarusian Aryna Sabalenka finished the 2020 WTA season in style, winning her third title of the year with a straight-sets victory over her doubles partner Elise Mertens in the Linz final.
Linz Open: Top-seed Aryna Sabalenka reaches semi-finals, will face Barbora Krejcikova for a place in final
The second-seeded Elise Mertens will take on Ekaterina Alexandrova in the other semi-final of Linz Open.
Ostrava Open: Aryna Sabalenka wins 12 straight games against qualifier Sara Sorribes Tormo in comeback
Aryna Sabalenka lost the first ten games before miraculously recovering to find the court with her groundstrokes and went on to take the next 12 games for a 0-6, 6-4, 6-0 win.
Italian Open 2020: Simona Halep extends winning streak to 11 matches; Novak Djokovic beats Filip Krajinovic
Halep, who is actually on an 11-0 run overall stretching back to February, recovered an early break in the opening set and then overpowered her 29th-ranked opponent the rest of the way.
US Open 2020, Quarter-finals, Tennis Highlights: Thiem beats De Minaur to reach semis; Azarenka sets up mouth-watering clash with Serena
Follow all the latest action, live scores and more from the US Open 2020 quarter-finals on Firstpost.com's live blog!
Kenin, winner of the 2020 Australian Open, was bundled out of the last 16 at Flushing Meadows in straight sets by Elise Mertens of Belgium.
US Open 2020 Women's Singles preview: COVID-19 withdrawals turn already unpredictable category into free-for-all
Ahead of tennis' return to the big stage, Firstpost takes a look at the US Open Women's Singles draw and attempts to determine the potential outcome of all four quarters