STEFANOS TSITSIPAS

The incident came hours before Roger Federer was scheduled to play for the final time before retiring.

A protester has lit a portion of the court and his arm on fire during a match at the Laver Cup tennis event.

Roger Federer has ended his superlative professional tennis career at age 41 with a loss in doubles alongside longtime rival Rafael Nadal at the Laver Cup.

Roger Federer and Rafael Nadal will team up in doubles at the Laver Cup on Friday in what Federer has announced will be the final match of his long and illustrious career.

Roger Federer and Rafael Nadal will team up in doubles at the Laver Cup on Friday in what Federer has announced will be the final match of his long and illustrious career. The lineup for Day 1 at the competition founded by Federer's management company was announced Thursday.

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.

In one breath, Nick Kyrgios talks about heading into the U.S. Open with as much self-belief and good play as ever, coming off a runner-up finish at Wimbledon and some strong results on hard courts in recent weeks.

Caroline Garcia has generated momentum going into next week’s U.S. Open, capturing the Western & Southern Open women’s championship with a 6-2, 6-4 win over Petra Kvitova.

Rafael Nadal extended his Grand Slam winning streak to 19 matches with a 3-6, 7-5, 3-6, 7-5, 7-6 (10-4) victory over 11th-seeded Taylor Fritz in the Wimbledon quarterfinals.

Nick Kyrgios has reached his first Grand Slam quarterfinal in 7 1/2 years with a five-set victory at Wimbledon over Brandon Nakashima of the United States.

Nick Kyrgios cursed at the Wimbledon chair umpire and demanded that his opponent, Stefanos Tsitsipas, be defaulted.

Nick Kyrgios beat fourth-seeded Stefanos Tsitsipas in a wild third-round match at Wimbledon.

Petra Kvitova has plenty of experience on the grass courts of Wimbledon.

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

Iga Swiatek’s 20-set winning streak ended but her run of consecutive match victories is now up to 32 as she heads to the French Open quarterfinals.

It took until the fourth round, but now it’s the high-seeded men who are exiting the French Open.

It took until the fourth round, but now it's the high-seeded men who are exiting the French Open. No. 2 Daniil Medvedev bowed out with a 6-2, 6-3, 6-2 loss to No. 20 Marin Cilic in a matchup between two past U.S. Open champions at Court Philippe Chatrier on Monday night. Medvedev joins No. 4 Stefanos Tsitsipas, last year's runner-up, on the way out of the bracket.

Top-ranked Iga Swiatek has won 31 consecutive matches and 48 of her past 49 sets as she heads toward the fourth round of the French Open.

Teenager Holger Rune has given a Denmark a man in the fourth round at Roland Garros for the first time in 63 years.

Teenager Holger Rune has given a Denmark a man in the fourth round at Roland Garros for the first time in 63 years. The 19-year-old Rune, who won the French Open junior title three years ago, closed out the third round of the main draw by beating Hugo Gaston of France 6-3, 6-3, 6-3 at Court Philippe Chatrier on Saturday night. Rune will take on 2021 French Open runner-up Stefanos Tsitsipas in the fourth round.

The surprising results in the women's draw at the French Open keep piling up and now only three of the top 10 women's seeds are still in the field before the third round has even started.

Alizé Cornet has beaten 2017 champion Jelena Ostapenko 6-0, 1-6, 6-3 to advance to the third round at the French Open.

Hugo Gaston has pulled off a five-set victory over 19th-seeded Alex de Minaur of Australia.

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.

Top-ranked Iga Swiatek carries a 28-match winning streak into the French Open.

Novak Djokovic raised his first trophy of the year at the Italian Open and showed that he’s back in top form exactly a week before the French Open starts.

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

Carlos Alcaraz has capped another impressive week with a straight-set victory over Alexander Zverev to win the Madrid Open and become the second-youngest player to win two Masters 1000 titles.

Rafael Nadal one day.

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.

Carlos Alcaraz has moved up to No. 9 in the ATP rankings at age 18.

As much as Daniil Medvedev cares about taking over the No. 1 ranking in men’s tennis, he also knows there are more serious matters happening involving his home nation of Russia.

Second-seeded Andrey Rublev beat No. 3 Felix Auger-Aliassime 7-5, 7-6 (4) to win the Open 13 tournament and clinch his ninth career title.

Felix Auger-Aliassime won his first career title at the ninth attempt, upsetting top-seeded Stefanos Tsitsipas 6-4, 6-2 in the Rotterdam final to deny his opponent an eighth title.

Rafael Nadal advanced to the Australian Open final by beating Matteo Berrettini 6-3, 6-2, 3-6, 6-3 and is now within one victory of a men’s-record 21st Grand Slam singles title.

Daniil Medvedev reeled off the last five games to beat Stefanos Tsitispas 7-6 (5), 4-6, 6-4, 6-1 in a heated Australian Open semifinal and continue his bid for back-to-back major titles.

U.S. Open champion Daniil Medvedev rallied from two sets down and saved a match point before beating Felix Auger-Aliassime in a marathon five-setter to move into the Australian Open semifinals.

Former French Open champion Iga Swiatek has improved on her stellar record against players ranked outside the top 30 at Grand Slam tournaments with a 4-6, 7-6 (2), 6-3 win over Kai Kanepi to advance to the Australian Open semifinals.

Restrictions which resulted in the removal of a spectator for wearing a T-shirt supporting Chinese tennis player Peng Shuai at the Australian Open have been overhauled after international backlash.

Alize Cornet has finally reached the quarterfinals of a Grand Slam tournament in her 63rd attempt.

Alex de Minaur has advanced to the fourth round of the Australian Open for the first time.

The safety protocols for COVID-19 have been a touchy subject at the Australian Open.

Nick Kyrgios says his recent bout of COVID-19 “hit me pretty hard.”.

Rafael Nadal has expressed thoughts shared by many others in the tennis world when it comes to Novak Djokovic’s will-he-or-won’t-he-play saga ahead of the Australian 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.

Greece badly missed Stefanos Tsitsipas in the singles when it was beaten by Poland on the opening day of the 16-team ATP Cup tournament on Saturday. The fourth-ranked Tsitsipas had to withdraw with an elbow problem ahead of his match with ninth-ranked Hubert Hurkacz, who went on to beat replacement Aristotelis Thanos 6-1, 6-2 to give Poland an unassailable 2-0 lead after Kamil Majchrzak had defeated Michail Pervolarakis 6-1, 6-4 earlier. Greece then gained some consolation when Tsitsipas combined with Pervolarakis in the doubles to overcome Szymon Walkow and Jan Zielinski 6-4, 5-7, 10-8.

Not long after Serena Williams’ name was absent from the entry list for the Australian Open, she confirmed the obvious: the seven-time champion won’t play the 2022 edition of the season-opening major in January.

Novak Djokovic has advanced to the semifinals of the ATP Finals by beating Andrey Rublev 6-3, 6-2.

Novak Djokovic extended his winning streak to six matches with a 7-6 (4), 6-2 victory over Casper Ruud at the ATP Finals.

Strong serving and consistent baseline play propelled U.S. Open champion Daniil Medvedev to a 6-7 (5), 6-3, 6-4 win over first-time qualifier Hubert Hurkacz in the opening match of the ATP Finals.

Taylor Fritz beat No. 3 seed Alexander Zverev 4-6, 6-3, 7-6 (3) to reach the semifinals of the BNP Paribas Open in front of a hometown crowd, scoring the biggest win of his young career.

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

Canadian teenager Leylah Fernandez has followed up her upset of defending champion Naomi Osaka at the U.S. Open by beating another past title winner at Flushing Meadows.

Carlos Alcaraz is the youngest male quarterfinalist at the U.S. Open since 1963.

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

The tennis newlyweds are having a disagreement. Elina Svitolina, like many players, will only think about the match directly in front of her. “But I try to tell him ... you have to be looking one match at a time,” Svitolina said with a laugh.

American tennis player Frances Tiafoe had a small, late-night crowd at Arthur Ashe Stadium going wild on every point in an upset win that pushed the record for the latest finish in tournament history. Tiafoe outlasted fifth-seeded Andrey Rublev 4-6, 6-3, 7-6 (6), 4-6, 6-1 and reached the fourth round for the second straight year. There were three U.S. Open finishes at 2:26 a.m., in 1993, 2012 and 2014.

Stefanos Tsitsipas heard boos from the crowd for yet another long trip off court at the U.S. Open after dropping a set during his second-round victory over Adrian Mannarino. Unbothered by that reaction Wednesday night, or the criticism he received from Andy Murray after taking breaks while beating him two days earlier, Tsitsipas pointed out that he's doing nothing that violates any regulation. The Grand Slam rule book just says players should take a “reasonable” amount of time, but does not provide an exact number of minutes that would be acceptable.

Andy Murray tumbled to the ground on his artificial hip, losing his balance in sweat-soaked shoes and leaving splotches on Arthur Ashe Stadium’s blue court from his soggy clothing. Murray muttered to himself, as he often does. In an entertaining contest featuring plenty of the smart play, hard hustling and clutch serving that carried Murray to the U.S. Open championship nearly a decade — and a pair of hip operations — ago, he did not quite have enough to come out ahead after almost five hours in high heat and humidity.

When Andy Murray sat in the U.S. Open's main interview room for a pre-tournament news conference Saturday, the moderator informed the 2012 champion he was allowed to remove the sort of light blue medical mask that has become so ubiquitous during the coronavirus pandemic. Unlike the nine players who met with the media in that spot a day earlier, Murray chose to keep his mask on.

A U.S. Veteran with four Afghan deployments said he is surprised by how quickly the Taliban took over the country just two weeks before the U.S. was set to complete its troop withdrawal after a costly two-decade war. (August 16)

This is Djokovic's 19th Grand Slam singles title.

Should Djokovic win, it would bring his career prize winnings to a mammoth $149.7 million, according to data from the ATP Tour.

Democrat Melanie Stansbury won election to Congress for New Mexico on Tuesday with a campaign closely tied to initiatives of the Biden administration.