Defending champion Novak Djokovic has lost at the U.S. Open one night after Carlos Alcaraz did.

How much do you know about Wimbledon.

Andy Murray was pleased with the result but not happy about the circumstances after finishing an Australian Open victory after 4 a.m. His marathon raised anew the issue that tennis has shown it is that rare sport where folks sometimes need to play all night.

Canada has won its first Davis Cup tennis title, beating Australia behind victories from Denis Shapovalov and Felix Auger-Aliassime.

Roger Federer is leaving tennis after more than two decades as a pro player with a style that rarely betrayed the effort behind his mastery.

Roger Federer has announced his retirement at age 41 after participating in some of the most memorable matches in the history of Grand Slam tennis.

Tennis pro Nick Kyrgios says he had “suicidal thoughts” and dealt with depression and abuse of drugs and alcohol in the past.

To some, it seemed a cloud had been lifted from the Australian Open.

(AP Photo/Hamish Blair)Novak Djokovic is gaining on Roger Federer and Rafael Nadal in the Grand Slam standings, and he’s already caught Federer in another significant statistic: As of Monday, Djokovic has been No. And no matter what happens over the next week, Djokovic is assured of breaking Federer’s mark on March 8. Djokovic’s Australian Open championship last month gave the 33-year-old from Serbia 18 Grand Slam singles trophies. That would make Medvedev the first man other than Federer, Nadal, Djokovic or Andy Murray to be first or second since International Tennis Hall of Fame electee Lleyton Hewitt was No. 1, followed by Australian Open champion Naomi Osaka, Simona Halep, Sofia Kenin and Elina Svitolina.

Spain's Rafael Nadal reacts after losing a point against Greece's Stefanos Tsitsipas during their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Feb. 17, 2021. (AP Photo/Andy Brownbill)Rafael Nadal pulled out of next week's hard-court tournament at Rotterdam, Netherlands, because of the bad back that bothered him during the Australian Open. Nadal's withdrawal from the ABN AMRO World Tennis Tournament was announced Thursday. Instead, third-ranked Daniil Medvedev, the runner-up to Novak Djokovic at the Australian Open, will take the top spot in the seedings. The 34-year-old Spaniard then was able to participate in the year's first Grand Slam tournament, which began Feb. 8.

(AP Photo/Mic Smith, File)Billie Jean King and the other members of the Original 9 who laid the groundwork for the women’s professional tour are the first group elected together to the International Tennis Hall of Fame, joining Lleyton Hewitt and Dennis Van der Meer in the Class of 2021. In results announced Wednesday, Hewitt was the only one of five nominees in the Player Category who was voted in. “I guess you could say we were women’s tennis suffragettes, in a way," Pigeon said. On Sept. 23, 1970, they all signed $1 contracts with World Tennis Magazine publisher Gladys Heldman to participate in the first women-only tennis tournament. 3, that women would finally be able to make a living playing professional tennis.

NEWPORT, R.I. – Billie Jean King and the other members of the Original 9 who laid the groundwork for the women’s professional tennis tour are the first group nominated together for the International Tennis Hall of Fame. They join Jonas Bjorkman, Sergi Brugera, Juan Carlos Ferrero, Lleyton Hewitt, Lisa Raymond and the late Dennis Van der Meer on the ballot announced Monday for the Hall’s Class of 2021. That group and Van der Meer, who advocated for a universal teaching method in tennis, were nominated in the Contributor Category. Van der Meer died last year. The full ballot now goes to the official voting group — which includes tennis journalists, historians and Hall of Fame members — and fans can vote online in the Player Category from Oct. 1-25.