The Australian Open is the year’s first Grand Slam tennis tournament.

Hall of Fame tennis coach Nick Bollettieri has died at the age of 91.

Novak Djokovic is 26-0 in Grand Slam matches in 2021.

Novak Djokovic has picked up his 17th consecutive victory over Kei Nishikori to reach the fourth round at the U.S. Open as he pursues a calendar-year Grand Slam.

Emma Raducanu continues to roll at the U.S. Open, using a straight-sets victory to advance to the fourth round.

Kei Nishikori is the next man standing between Novak Djokovic and the completion of a calendar-year Grand Slam at the U.S. Open.

Novak Djokovic will begin his bid to win the U.S. Open for a men’s-record 21st major tennis championship and to complete a calendar-year Grand Slam by facing a player who comes through qualifying.

How well do you know the U.S. Open tennis tournament.

Mackie McDonald has eliminated 2015 champion Kei Nishikori in three sets at the Citi Open to reach the first ATP final of his career.

Jenson Brooksby has beaten 11th-seeded John Millman 6-1, 6-2 to reach the semifinals of the Citi Open in his debut appearance at an ATP 500 event.

There will be a female chair umpire for the Wimbledon men’s singles final for the first time in the history of a tournament first played in 1877.

Naomi Osaka was going to be at the center of attention during the Tokyo Olympics no matter what.

Nick Kyrgios is back on the tennis scene and back to winning at Wimbledon.

Serena Williams has lost in straight sets in the fourth round of the French Open.

Alexander Zverev has reached his third French Open quarterfinal by eliminating Kei Nishikori 6-4, 6-1, 6-1.

Kei Nishikori went five sets again to win at the French Open.

Stefanos Tsitsipas of Greece returns to Damir Dzumhur of Bosnia during the Miami Open tennis tournament, Saturday, March 27, 2021, in Miami Gardens, Fla. (AP Photo/Marta Lavandier)MIAMI – For tennis up-and-comers like Stefanos Tsitsipas, the draw at the Miami Open began to look a lot less daunting even before the tournament began. “It’s a first test to see how it is playing without them,” Tsitsipas said after his third-round victory Saturday. 2-seeded Tsitsipas is among those with the best chance to take advantage, and he looked the part against Damir Dzumhur, winning 6-1, 6-4. “I created a lot of opportunities with my serve — I wasn’t rushing at all, finding the right angles and executing it perfectly,” Tsitsipas said. In women's play, top-ranked Ash Barty and three-time champion Victoria Azarenka advanced to a round of 16 showdown.

Italian tennis player Simone Bolelli, left, and Argentina's Maximo Gonzalez are escorted to their training session in Melbourne, Australia, Monday, Jan. 18, 2021. The number of players in hard quarantine swelled to 72 ahead of the Australian Open after a fifth positive coronavirus test was returned from the charter flights bringing players, coaches, officials and media to Melbourne for the season-opening tennis major. Some players have expressed anger at being classified as close contacts merely for being on board those flights with people who later tested positive. But local government, tennis and health authorities have said all players were warned of the risks in advance. The Australian Open starts Feb. 8 following a week of warmup tournaments at Melbourne Park and the ATP Cup.

(AP Photo/Alessandra Tarantino)PARIS – The Latest from the French Open (all times local):___9:35 p.m.American teenager Coco Gauff’s French Open debut has ended in the second round after she double-faulted 19 times in a 4-6, 6-2, 7-5 loss to 159th-ranked qualifier Martina Trevisan. Stefano Travaglia beat the Japanese player 6-4, 2-6, 7-6 (7), 4-6, 6-2 in the second round of the French Open after nearly four hours. 2-seeded Spaniard is looking to win his record-extending 13th French Open title and equal Roger Federer’s men’s record of 20 major titles overall. ___2:55 p.m.U.S. Open runner-up Victoria Azarenka is out of the French Open in the second round. They said it was "a fighter plane which has broken the sound barrier.”___12 p.m.Serena Williams is out of the French Open.

The French Open is the only Grand Slam tournament that does not use tiebreakers in the final set. 9 seed Johanna Konta 6-3, 6-3 at Court Suzanne Lenglen on Sunday. ___7:30 p.m.Stan Wawrinka made quick work of Andy Murray in their reunion of sorts at the French Open. One of his coaches is Wolfgang Thiem, the father of fellow Austrian Dominic Thiem — the U.S. Open champion, and French Open runner-up the past two years. The 20-year-old Korda beat Andreas Seppi of Italy 6-2, 4-6, 6-3, 6-3.