Jannik Sinner is starting to dominate.

Why are there tennis matches finishing at nearly 4 a.m. at the Australian Open.

There are three American men in the U.S. Open quarterfinals for the first time since 2005.

Tennis players are always dealing with match points and the questions they create, whether on a public court or a Grand Slam stage such as at the U.S. Open.

John Isner has headed off into retirement after losing in singles and doubles at the U.S. Open.

John Isner says he will retire from professional tennis after playing at the U.S. Open.

Wu Yibing is the the first Chinese player to win an ATP Tour title after rallying in a three-set, all-tiebreaker thriller to beat John Isner in the Dallas Open.

Jannik Sinner withstood the aces and reached the fourth round at Wimbledon by beating John Isner 6-4, 7-6 (4), 6-3.

Two-time Wimbledon champion Andy Murray has lost in the second round to big-serving American John Isner.

Fifth-seeded Carlos Alcaraz advanced to the third round at Wimbledon with a 6-4, 7-6 (0), 6-3 victory over Tallon Griekspoor of the Netherlands.

The ATP men’s professional tennis tour has announced reforms that include expansion of five Masters 1000 events and 50-50 profit sharing between players and tournaments starting next year.

Rafael Nadal will see a familiar face in the opposite corner for his fourth-round match at the French Open.

The crowds at the French Open are back to their no-mask, no-distancing, full-capacity, pre-pandemic levels after two years of COVID-19 restrictions.

Two-time French Open finalist Dominic Thiem’s losing streak reached 10 matches with a first-round exit at Roland Garros as he works his way back from a torn tendon in his right wrist.

Once is enough when it comes to beating Rafael Nadal on a clay court.

John Isner believes in his chances against Rafael Nadal in the second round of the Italian Open.

Rafael Nadal has gotten is off to a good start in his return from injury, defeating Miomir Kecmanovic in two sets to reach the third round at the Madrid Open.

Rafael Nadal outlasted Spanish teenager Carlos Alcaraz, 6-4, 4-6, 6-3 to reach the BNP Paribas Open final and improve to 20-0 this year.

Nursing a nagging foot injury, Rafael Nadal improved to 18-0 this season, edging Reilly Opelka 7-6 (3), 7-6 (5) on Wednesday in the fourth round of the BNP Paribas Open.

At least Novak Djokovic knows who he'll face in the first-round of his Australian Open title defense — if he’s allowed to play.

Reaction from social media and elsewhere after Novak Djokovic won a legal battle to stay in Australia and play in the Australian Open after his exemption from strict coronavirus vaccine rules was questioned.

Britain, Kazakhstan and Croatia each advanced to the quarterfinals of the Davis Cup Finals by winning their groups.

This is the first time in U.S. Open history that no men or women from the host country has made it to the quarterfinals in singles.

Novak Djokovic has extended his pursuit of the first calendar-year Grand Slam in men's tennis since 1969 by beating the last U.S. singles player at the U.S. Open.

How long is too long to take in the bathroom.

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

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.

The Associated Press has learned that teenager Coco Gauff and Australian Open runner-up Jennifer Brady will lead the U.S. Olympic tennis team at the Tokyo Games.

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

Novak Djokovic has stopped Rafael Nadal's bid for a 14th French Open title and handed him just his third loss in 108 matches in the tournament.

The stadium announcer had already asked fans to leave before the 9 p.m. coronavirus curfew by the time the last women’s singles match of the day finished at the French Open.

There are four American men in the French Open's third round for the first time in 25 years: John Isner, Reilly Opelka, Stevie Johnson and Marcos Giron.

There are no American men in the ATP's Top 30 for the first time in the nearly half-century of ATP computerized tennis rankings.

Barty didn't wilt, ousting Sabalenka 6-4, 6-7 (5), 6-3 for her third three-set win in four matches at the tournament. Medvedev beat Tiafoe 6-4, 6-3, and has gone 10-1 in sets against the American in their past four head-to-head matchups. Ad“Everywhere in the world there are different conditions and at times it suits you more than other places,” Barty said. Medvedev had 11 aces and showed no signs of wear, two days after cramping in the heat during a third-round win. 21 seed Jannik Sinner of Italy in the quarterfinals; Sinner advanced with a 6-3, 6-2 win over Emil Ruusuvuori of Finland.

Daniil Medvedev, of Russia, walks gingerly to the net after defeating Alexei Popyrin, of Australia, during the Miami Open tennis tournament, Sunday, March 28, 2021, in Miami Gardens, Fla. (AP Photo/Wilfredo Lee)MIAMI – Daniil Medvedev could barely walk, much less run. The top-ranked Medvedev held his final two service games despite being hobbled by cramps and beat Alexei Popyrin 7-6 (3), 6-7 (7), 6-4 in the third round at the Miami Open. “Winning a Grand Slam final in straight sets doesn’t feel the way I felt after the match point today,” he said with a grin. Medvedev failed to convert three match points in the second set after taking a 5-2 lead. When Popyrin misfired on a backhand on the final point, Medvedev shuffled to the net with a smile that turned into a wince.

Federer is withdrawing from this month's Miami Open so he can spend extra time preparing to work his way back out on tour, his agent told The Associated Press on Monday, March 1, 2021. (AP Photo/Dita Alangkara, File)Roger Federer is withdrawing from this month's Miami Open so he can spend extra time preparing to “work his way back out on tour,” his agent told The Associated Press on Monday. “After Doha and maybe Dubai, (Federer) will go back and do a training block to continue to slowly work his way back out on tour,” Godsick wrote. Miami Open tournament director James Blake did not immediately respond to a request for comment. Federer beat John Isner 6-1, 6-4 in the final to win the Miami Open in 2019, the last time it was held.

Boston College forward Andrew Kenny (23), who joined the team as a walk-on, congratulates teammates during the second half of an NCAA college basketball game against Wake Forest, Wednesday, Feb. 10, 2021, in Boston. (AP Photo/Charles Krupa)The Latest on the effects of the coronavirus outbreak on sports around the world:___The Boston College men’s basketball game at Georgia Tech scheduled for Wednesday has been postponed. The Atlantic Coast Conference said the postponement was due to the continued quarantines and contact tracing within the Boston College program. Boston College is 3-13 overall and 1-9 in the ACC. The Flyers are scheduled to face Boston on Sunday outdoors at Lake Tahoe as part of a league event.

“If it was my knee, that would be more really devastating for me. I feel like my body is actually doing really, really well,” said Williams, who turned 39 on Saturday. Williams took a long pause, clutched at that leg and then took a medical timeout so a trainer could wrap it. I was able to get it somewhat better, but just looking long-term in this tournament, will I be able to get through enough matches? And so, for me, I don’t think I could,” Williams said Wednesday.

Murray and Wawrinka met in the 2017 semifinals in Paris and neither has been quite the same since. “To me, also.”But 2015 French Open champion Wawrinka’s road back from two procedures on his knee has been less arduous than Murray’s journey. VENUS DONE FOR 2020Venus Williams finished 2020 with an 0-3 record in Grand Slam matches, adding a first-round exit at the French Open to those she had at the Australian Open and U.S. Open. So I’m looking forward to that.”She is a seven-time major champion and was the 2002 runner-up at the French Open to her younger sister, Serena. The 20-year-old American’s father, Petr, won the 1998 Australian Open and was the runner-up at the 1992 French Open; his mother, Regina, reached the top 30 in the WTA rankings.

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.

Novak Djokovic, of Serbia, returns a shot from Tennys Sandgren during the third round at the Western & Southern Open tennis tournament Tuesday, Aug. 25, 2020, in New York. (AP Photo/Frank Franklin II)NEW YORK Novak Djokovics neck felt much better, and his tennis looked much better, in a 6-2, 6-4 victory over unseeded American Tennys Sandgren at the Western & Southern Open on Tuesday that improved the No. The Western & Southern Open is usually held in Ohio but was moved to the U.S. Opens site in Flushing Meadows this year to make for a two-event, no-spectator bubble amid the pandemic. He has won five of the past seven Grand Slam tournaments, including at the Australian Open in February. Womens quarterfinal matchups set earlier in the day were two-time Grand Slam champion Naomi Osaka against Anett Kontaveit, former No.