Roger Federer says he would be opposed to men's tennis following the women's example and allowing on-court coaching.
A look at the 10 landmark matches from the 20-times Grand Slam champion's career.
Rafael Nadal ended a sub-par Grand Slam season on a heartbreaking note when he fell 3-6, 4-6, 6-4 6-3, 6-4 at the US Open to an inspired Fabio Fognini after winning the first two sets at Flushing Meadows in New York, on Friday.
'I hope that as an association we make the best decision for our business, for our health, for the tournaments, for public.'
Andy Murray launched a fresh rocket at his US Open conqueror Stefanos Tsitsipas on Tuesday, griping that the Greek player took longer on bathroom breaks than it took billionaire Jeff Bezos to reach outer space.
Medvedev moved a step closer to a potential semi-final showdown with Novak Djokovic at the Australian Open warm-up event.
Rafael Nadal will be aiming to win a record-extending 13th French Open when the re-scheduled claycourt event starts at the end of September.
With Nadal and Federer both skipping the tournament, Djokovic's sensational exit on Sunday after hitting a line judge in the throat with a ball opened up the field for a younger cohort of players.
Novak Djokovic, who won Wimbledon to take his major singles titles to 21, has opted not to be vaccinated against COVID-19. He said on Thursday he could not fly to New York for the year's final Grand Slam.
Juan Martin Del Potro, who reached the quarter-final of the Australian Open on two occasions, has been battling problems with his right knee since June last year
Novak Djokovic cruised past Germany's Jan-Lennard Struff 6-3, 6-1 on Wednesday to reach a record-equalling eighth Western & Southern Open semi-final in New York where he will face Spaniard Roberto Bautista Agut.
Poland's world number four Agnieszka Radwanska breezed past Spaniard Larra Arruabarrena 6-0, 6-2 in the semi-finals of the Korea Open on Saturday to set up a title clash with Russia's Anastasia Pavlyuchenkova.
Two-times Grand Slam champion Naomi Osaka advanced to the US Open final for the second time in her career with a 7-6(1), 3-6, 6-3 victory over big-hitting Jennifer Brady.
Osaka said her dominance in the rematch showed how much better she had become at sticking to a plan rather than relying on her instincts.
Victoria Azarenka's career has been a rollercoaster ride since she since she returned to the tour in 2017 after taking time off to have her son, Leo. After three years away from the WTA Tour following the birth of her son Alexander, Tsvetana Pironkova, playing in her first event since 2017, claimed a shock upset at the US Open.
It is a U-turn from Novak Djokovic after his June statements that competing at the 2020 US Open would be 'impossible' due to 'extreme' COVID-19 protocols for the tournament at Flushing Meadows.
Italy's Matteo Arnaldi produced a sensational performance to take out sixth seed Andrey Rublev and reach the last 16 of the French Open on Friday.
Osaka has been an outspoken supporter of the Black Lives Matter movement both in Japan and the United States
Indian tennis ace Sania Mirza and her Zimbabwean partner Cara Black hardly broke a sweat as they entered the US Open women's doubles semifinals after their rivals retired midway through the quarterfinal match in New York.
World number one Novak Djokovic says he is excited by the prospect of playing at the US Open but says it would only be fair if every player eligible is able to compete. The Unites States Tennis Association (USTA) announced this week that the US Open would go ahead at the end of August without fans and with strict health protocols in place.
Daniil Medvedev has tapped into the energy of the crowd at Melbourne Park by playing both hero and villain.
German Kerber has not won a title since and will now drop out of the world's top 10.
A summary of Friday's action at the US Open.
Images from Day 9 of the 2021 US Open in New York on Wednesday.
The professional tennis circuit, which requires players to jet around the world, was forced into shutdown in early March as countries went into lockdown and closed their borders to contain the spread of the novel coronavirus.
World number two Roger Federer launches his bid for a sixth US Open title, and his first since 2008, with a first-round match against Argentina's Leonardo Mayer at the Arthur Ashe Stadium on Tuesday.
Maria Sharapova's US Open preparations took a major blow with the Russian World No 2 forced to withdraw from next week's WTA event in Toronto.
Marin Cilic and Kei Nishikori will meet in the semi-finals at the Citi Open in Washington on Saturday, their first encounter since the final of last year's US Open.
She has emerged as one of the most measured, and perhaps most unanticipated, voices to address racial injustice in America.
When the match began it was Federer who surprisingly looked intimidated under the Arthur Ashe Stadium lights as he sprayed errors all around the court but the Swiss great woke from his slumber in time to turn the match resoundingly in his favour.
This will be her first appearance at the tournament since she was ousted in the second round in 2017.
Four times now, twice at Wimbledon (2018, 2019) and at the US Open (2018, 2019) Serena Williams has come agonizingly close to that 24th Grand Slam only to fall at the final hurdle.
Bianca Andreescu, 19, the first Canadian to win a major in the professional era, prevented Serena Williams from equalling Margaret Court's record of 24 Grand Slam singles titles.
Both players burn with heaps of motivation to hoist the winner's trophy at Arthur Ashe Stadium in the last grand moment of the 2015 slam season.
The French Tennis Federation, in a surprise move, switched the claycourt Grand Slam tournament to Sept. 20-Oct. 4 from its May start due to the novel coronavirus outbreak. The new Roland Garros dates clashed with the Sept. 25-27 Laver Cup. The tournament will now be held from Sept. 24-26 in 2021.
Konta first British woman in US Open last 16 since 1991
Serena Williams overpowered German Carina Witthoeft 6-2, 6-2 to set up a third-round clash with big sister Venus at the US Open on Wednesday.
Images from Day 5 of the US Open in New York on Friday
Images from Day 3 of the 2020 US Open in New York, on Wednesday.
Building the stamina to consistently survive the rigours of playing five-set matches will top Andy Murray's agenda as the former US Open champion, who has undergone two hip surgeries, plots the revival of his career.
