Novak Djokovic has been unbeaten at Wimbledon since retiring with an elbow injury against Tomas Berdych in the 2017 quarter-finals.
IMAGES from the US Open matches played on Day 1 at the Flushing Meadows in New York on Monday.
Daniil Medvedev was fined for an outburst against the umpire
After shaking hands with the opponents, the 24-year-old Zverev, ranked third in singles, approached the umpire's chair and hit it repeatedly before heading towards his courtside seat, upset over a line call during the match earlier.
Rafael Nadal returns to the US Open for the first time in three years short of match practice and with big question marks about his fitness but few people will dismiss the Spaniard's chances of claiming a record-extending 23rd Grand Slam title.
Nadal set to face Kyrgios clash in second round
Apostolos immediately got up from his chair in shock and went up to the stands to sit with the rest of the Greek team while Tsitsipas, who was docked a point and warned by the umpire, received an earful from his mother Julia Apostoli.
World number one Rafael Nadal won a battle of attrition against fellow left-hander Yoshihito Nishioka of Japan 7-6(4), 6-4 to seal Spain's spot in the final eight of the inaugural ATP Cup in Perth on Wednesday. Meanwhile his long-time rival, world number two Novak Djokovic, had an easier outing in Brisbane, strolling past Chile's Cristian Garin 6-3, 6-3 to stay undefeated in the new year.
Alexander Zverev received a suspended eight-week ban for smashing his racket against the umpire's chair at last month's ATP 500 event in Acapulco, for which he was expelled from the tournament.
Roger Federer handed Nick Kyrgios a 6-4 6-1 7-5 tennis masterclass by storming into the fourth round of the U.S. Open on Saturday with a ruthless display that left the Australian talking to himself and waving the white flag.
Nadal is bidding for his second title in his 15th appearance at Melbourne Park
Novak Djokovic produced a stunning performance to thrash Frances Tiafoe in his first match since winning Wimbledon in July to edge Team Europe ahead in the Laver Cup on Saturday.
Summary of sports events and persons who made news on Wednesday
'I have been serving well, starting to create damage with the forehand. Hitting serve on one shot, I think'
Local hope Nick Kyrgios has been elevated to the Rod Laver Arena for his meeting with childhood hero Jo-Wilfried Tsonga at the Australian Open on Friday, when Melbourne Park is again expected to swelter.
Iga Swiatek's maiden triumph at the US Open extended her lead to almost twice as many points as the second-ranked Ons Jabeur
Forty years have passed since Chris O'Neil held the Daphne Akhurst Memorial Cup aloft as the last Australian women's champion in 1978.
Matteo Berrettini won the Stuttgart Open for a second time after he beat Andy Murray 6-4, 5-7, 6-3 on Sunday to deny the Scot what would have been his first title on grass in six years.
Canada's Bianca Andreescu has decided not to compete at the Tokyo Olympics due to the COVID-19 pandemic, the former US Open champion said.
Gauff will not compete in the Tokyo Olympics after testing positive for COVID-19,
Australia's Nick Kyrgios said he supported vaccination "but how we are handling Novak's situation is bad, really bad". The Australian Open begins on January 17, but the multi-millionaire Djokovic is constrained from training as he sits in a hotel where one Iranian detainee said he had found maggots and mould in the bread.
IMAGES from the Australian Open matches played on Friday.
Unseeded Novak Djokovic was given some trouble by Jeremy Chardy in the opening set but prevailed 7-6(5), 6-4 to take his record over the Frenchman to 11-0 and 26-0 in sets.
Australian Nick Kyrgios was involved in a fresh dispute after being accused of swearing at the BNP Paribas Open in California.
The list of players who have been defaulted from a tour-level match for on-field misconduct.
Rediff.com takes a look at some interesting highlights of the tournament.
Rafael Nadal toppled big-serving American Reilly Opelka to remain perfect on the year while unseeded Serbian Miomir Kecmanovic stunned world number six Matteo Berrettini.
Kyrgios out of Australian ATP Cup team as world ranking slips.
Images from Day 6 of the US Open in New York, on Saturday.
Top seed Rafael Nadal pulled out of this week's Mexican Open in Acapulco after aggravating the leg injury that forced him out of the Australian Open last month.
Australian Nick Kyrgios exited the Rogers Cup to boos and a hefty fine from the ATP for insulting remarks.
Former world number one Andy Murray's comeback from a year-long injury layoff was ended by Nick Kyrgios at Queen's Club on Tuesday but only after the Briton produced a typically dogged display of resistance.
Cilic marches past Querrey into Queen's semis
Federer beat Kyrgios for the third time in as many editions of the competition to take Europe closer to the 13-point victory target
A summary of the second day's play at the US Open.
Novak Djokovic, who has won a record nine titles at Melbourne Park including the last three, has repeatedly declined to reveal whether he has been vaccinated against COVID-19, with Australian Open organisers Tennis Australia confirming that all players would have to be vaccinated to compete in Melbourne.
'Yes, I fall over, but grass sometimes is slippery. Nothing happens. I am good, yeah. Nothing'
It was the Russian's first competitive match since she withdrew from the St Petersburg Open in January.
Images from Day 4 of the Wimbledon tennis championships played in London, on Wednesday.
Organisers played a wrong national anthem for Moldova ahead of their tie against Belgium in Sydney. Denis Shapovalov won the battle of the next generation against Greek Stefanos Tsitsipas to help Canada to an emphatic 3-0 victory in the inaugural ATP Cup men's team event in Brisbane on Friday.