World number three Stefanos Tsitsipas of Greece advanced to the second round of the US Open men’s singles as he twice fought back from a set behind to beat Britain’s Andy Murray in a thrilling match that went the distance in New York City. 

winner gave his opponent victory.The top half of the draw in the first round, with world number one Novak

Djokovic of Serbia beginning his bid to become the first man since 1969 to win a calendar Grand Slam

World number one Novak Djokovic will aim to become the sixth player to complete a calendar Grand Slam

Djokovic saw his hopes of joining German great Steffi Graf as the only players to complete a golden slam

the only players to have managed the accomplishment, with the latter doing so twice in 1962 and 1969.Djokovic

being defaulted last year after striking a line judge with a ball.A fourth US Open title would see Djokovic

Spectators at the US Open will now be required to present proof of their COVID-19 vaccination status, in a change announced less than 72 hours before the final tennis Grand Slam of the year, which is set to begin on Monday (August 30).

and vaccinations have proved a contentious talking point on both tours.Men’s singles world number one Novak

Djokovic of Serbia said he would oppose any move to make vaccines compulsory, while world number three

The Greek Government has claimed Stefanos Tsitsipas does not have enough knowledge about COVID-19 vaccines to form an opinion on the topic after he said he would not get the jab unless it became mandatory to compete on the Association of Tennis Professionals (ATP) Tour.

began last March.The COVID-19 vaccine has also divided opinion in tennis.In April, world number one Novak

Djokovic said he hoped the COVID-19 vaccine would not become mandatory for ATP Tour players to compete

Romanian two-times women’s tennis grand slam champion Simona Halep has said she hopes vaccinations against COVID-19 can help bring an end to the bubble system on the Women’s Tennis Association (WTA) Tour.

Greece said he will not get inoculated unless it becomes compulsory on the ATP Tour.World number one Novak

Djokovic of Serbia said he would oppose any such move back in April.A number of other stars have expressed

Stefanos Tsitsipas says he will not get a COVID-19 vaccine unless it becomes mandatory to compete on the Association of Tennis Professionals Tour.

Cincinnati Masters.The COVID-19 vaccine has divided opinion within tennis.In April, world number one Novak

Djokovic said he hoped the COVID-19 vaccine would not become mandatory for players to compete and has

Camila Giorgi won the Canadian Open in Montreal, beating world number six Karolína Plíšková in a stunning straight-sets triumph, while Daniil Medvedev captured his fourth Association of Tennis Professionals (ATP) Masters 1000 title in Toronto.

US Open final defeat, again to Nadal, as the tournament gets underway on August 30.However, Serbian Novak

Djokovic will offer fierce competition as he could become the first man to win all four Grand Slams

The Canadian Open returns tomorrow after its absence from the tennis calendar in 2020 because of the COVID-19 pandemic.

of three wildcard entries, while six players will progress through qualifying today.World number one Novak

Djokovic of Serbia has withdrawn to aid his preparations for the US Open as he seeks to become the first

Alexander Zverev managed to shut out the voices of anti-Olympic protesters as he swatted away Karen Khachanov to secure gold at the Tokyo 2020 Olympics here.

two-set lead slip to Austria’s Dominic Thiem in the final.Zverev, who defeated Serbia’s world number one Novak

Djokovic in the semi-finals, was also pleased to prove his doubters wrong."

Belinda Bencic battled past unseeded opponent Markéta Vondroušová of the Czech Republic in three sets to become the first Swiss Olympic women's tennis champion following a gruelling final at Tokyo 2020 here today.

timeout and won both games after returning to the court to secure the Olympic title.World number one Novak

Djokovic, who was hoping to maintain his bid for the golden slam, leaves Tokyo empty handed after the

The International Tennis Federation (ITF) has confirmed its extreme heat protocols have been activated at Tokyo 2020, with the possibility of suspending matches should the temperature increase further.

Daniil Medvedev has called for matches to take place later in the day ©Getty ImagesWorld number one Novak

Djokovic confirmed that he had also requested matches to be pushed back to combat the stifling conditions

Picture gallery

as men's football begun ©Getty ImagesSailors tested the waters in Enoshima ©Getty ImagesTennis star Novak

Djokovic was the main draw at a Serbian press conference ©Getty ImagesA canoe slalom athlete takes to

Coco Gauff has pulled out of the Tokyo 2020 Olympics after testing positive for COVID-19.

number eight, reached his first Grand Slam final at Wimbledon this month but was beaten by Serbia's Novak

Djokovic."

World number one Novak Djokovic has confirmed his participation for the Olympic Games here as he continues

singles crown in a calendar year.Having already won this year’s Australian Open, French Open, Wimbledon, Djokovic

I booked my flight for Tokyo and will proudly be joining #TeamSerbia for the Olympics," Djokovic wrote

when he defeated Italy’s Matteo Berrettini to clinch his sixth Wimbledon title on Sunday (July 11).Djokovic

pic.twitter.com/23TmSdvc4x— Novak Djokovic (@DjokerNole) July 15, 2021The Olympics have been hit by a

Swiss star Roger Federer has become the latest high-profile withdrawal from the tennis tournament at the postponed Olympic Games here in Tokyo.

among the other big names who will not be competing in the men's draw at Tokyo 2020.World number one Novak

Djokovic, who joined Federer and Nadal on 20 Grand Slam crowns after winning Wimbledon on Sunday (July