Novak Djokovic, Jannik Sinner, Aryna Sabalenka and Coco Gauff are among 20 leading tennis players who have signed a letter sent to the heads of the four Grand Slam tournaments seeking more prize money and a greater say in how events are run.

Emma Raducanu lost to Karolina Muchova after an emotional first set in which a spectator was ejected at the Dubai Championships.

Madison Keys saved a match point and upset No. 2 Iga Swiatek 5-7, 6-1, 7-6 (10-8) in a high-intensity Australian Open semifinal to reach a Grand Slam title match for the second time in her career.

Iga Swiatek's latest lopsided win at the Australian Open has come in the quarterfinals against Emma Navarro.

Aryna Sabalenka’s bid for a third consecutive Australian Open championship will continue after she got past Anastasia Pavlyuchenkova 2-6, 6-2, 6-3 in a surprisingly difficult quarterfinal.

Coco Gauff has lost in the Australian Open quarterfinals to Paula Badosa 7-5, 6-4.

Iga Swiatek has beaten Paula Badosa in three sets and Poland leads host Spain by an insurmountable 2-0 in the opening round of the Billie Jean King Cup Finals in Malaga.

Coco Gauff has advanced to the final of the China Open by beating Paula Badosa 4-6, 6-4, 6-2.

Top-ranked Jannik Sinner will play rival Carlos Alcaraz in the final of the China Open after recording a 6-3, 7-6 (3) victory against home favorite Bu Yunchaokete in the semifinals.

Emma Navarro's first Grand Slam semifinal will come at the U.S. Open against Aryna Sabalenka.

Emma Navarro’s 6-3, 4-6, 6-3 victory over defending champion Coco Gauff at the U.S. Open has earned her a trip to the quarterfinals for the second consecutive Grand Slam tournament.

Frances Tiafoe is getting the rematch he wants, a second shot at Ben Shelton at the U.S. Open.

Grand Slam winners Elena Rybakina and Aryna Sabalenka have reached the fourth round of the French Open in straight sets.

Unseeded American Peyton Stearns’ elimination of No. 10 Daria Kasatkina at the French Open was one of several losses for seeded women on a rainy day filled with matches.

Playing four days after the death of a former hockey player she dated, Aryna Sabalenka beat Paula Badosa 6-4, 6-3 on Friday in the second round of the rain-soaked Miami Open.

Defending champion Aryna Sabalenka and U.S. Open winner Coco Gauff are into the fourth round of the Australian Open after commanding wins.

Two-time Wimbledon champion Andy Murray has been eliminated by Stefanos Tsitsipas after a five-setter contested over two days at Centre Court.

Twenty-year-old Danish player Holger Rune recorded his second victory over Novak Djokovic in little more than six months by beating the 22-time Grand Slam champion 6-2, 4-6, 6-2 to reach the Italian Open semifinals.

Top-ranked Iga Swiatek says she won't play in the Billie Jean King Cup and has complained about that event being scheduled too close to the WTA Finals.

Matteo Berrettini has ended Andy Murray’s bid to return to the fourth round of a Grand Slam tournament by beating the the three-time major 6-4, 6-4, 6-7 (1), 6-3 at the U.S. Open.

Coco Gauff held off four-time major champion Naomi Osaka 6-4, 6-4 on Thursday night to advance to the quarterfinals at the Mubadala Silicon Valley Classic.

Rankings are a significant part of every professional tennis player's life.

Simona Halep’s serve was working, her returns were landing, and the points were piling up fast.

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.

American duo Coco Gauff and Jack Sock are into the semifinals of the mixed doubles tournament.

Novak Djokovic found himself locked in a tight fourth-round match at Wimbledon against a wild-card entry making his Grand Slam tournament debut.

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

Reigning Wimbledon champion Novak Djokovic might be playing in his last Grand Slam tournament for a while because he isn't vaccinated against COVID-19.

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

Serena Williams has lost her first singles match in nearly a year.

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

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.

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

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

Iga Swiatek has moved up one spot to the top of the WTA rankings and is the first tennis player from Poland to be No. 1 in the sport.

Paula Badosa was midway through an on-court interview after another victory at the Miami Open when a thought crossed her mind.

Iga Swiatek rallied from a break down in each set to beat Simona Halep 7-6 (6), 6-4 and reach the final of the BNP Paribas Open.

Rafael Nadal is into the quarterfinals of the Australian Open for the 14th time after beating Adrian Mannarino in straight sets following a long opening tiebreaker.

Defending champion Naomi Osaka didn’t make it to a much-anticipated fourth-round contest against top-ranked Ash Barty at the Australian Open.

Defending champion Naomi Osaka has advanced to the third round at the Australian Open by beating Madison Brengle 6-0, 6-4.

Olympic gold medalist Alexander Zverev advanced to the third round at the Australian Open and continued a streak at Grand Slam tournaments by beating Australian veteran John Millman 6-4, 6-4, 6-0.

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.

Australian Open champion Naomi Osaka opened her 2022 season with a win over Alize Cornet in one of the Summer Set tournaments in Melbourne.

Cameron Norrie beat Nikoloz Basilashvili 3-6, 6-4, 6-1 to win the BNP Paribas Open, giving the tournament its first champion ranked outside of the Top 25 since 2010.

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 has moved into the third round of the U.S. Open as he tries to complete a calendar-year Grand Slam and collect a 21st major championship.

Daniil Medvedev was struggling so much with the suffocating heat and humidity in the Olympic tennis tournament that at one point the chair umpire asked him if he could continue playing.

French Open finalist Anastasia Pavlyuchenkova grasped for an air tube during a medical timeout and grew frustrated at the lack of ice in a court-side container.

Wimbledon’s traditional Middle Sunday of rest will disappear in 2022.

Coco Gauff has won in her return to Centre Court at Wimbledon.

Anastasia Pavlychenkova finally has a Grand Slam quarterfinal victory.

Stefanos Tsitsipas and Alexander Zverev will play each other in the French Open semifinals.

Stefanos Tsitsipas has reached the French Open semifinals for the second year in a row.

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

When Tennys Sandgren resumed practicing after his can’t-go-anywhere hard quarantine ended, the American said Tuesday, his hands developed blisters from holding a racket. And, like Azarenka, both Sandgren and Pospisil lost their opening matches. “I wouldn’t say the whole tournament is a joke, but for some players, it’s not feasible. “I needed fresh air or maybe a bigger room or better conditions to play against the best players,” she said. Players in the “regular” quarantine were allowed to leave their rooms for five hours per day during the first two weeks after getting to Australia.

Badosa who is in Melbourne for the Australian Open says she tested positive for COVID-19. She wrote on Twitter, Thursday, Jan. 21, 2021, that she received her test result for the illness on the seventh day of her hard quarantine in Australia. (AP Photo/Christophe Ena, File)MELBOURNE – A Spanish tennis player ranked in the top 70 who was forced to quarantine in her hotel room after potentially being exposed to the coronavirus on an Australian Open charter flight says she tested positive for COVID-19. “Today I received a positive COVID-19 test result. Tennis Australia has refused to identify those dozens of players, but several have posted on social media about being in the hard quarantine.

Petra Kvitova of the Czech Republic celebrates winning her fourth round match of the French Open tennis tournament against China's Zhang Shuai in two sets 6-2, 6-4, at the Roland Garros stadium in Paris, France, Monday, Oct. 5, 2020. (AP Photo/Michel Euler)PARIS – Petra Kvitova owns two Wimbledon titles, so making it to the quarterfinals of a Grand Slam tournament for the 13th time should not necessarily feel like a big deal to her. Which is why Kvitova’s emotions swelled and her eyes watered after she beat Zhang Shuai 6-2, 6-4 on Monday at the French Open, where she hadn’t reached the round of eight since 2012. Everything came to my mind -- my whole family, people who I loved, (who helped) me through the tough, tough time,” Kvitova said. I just wanted to get some carbs, some potato or rice, whatever.”MAINSTREAM MEDIAFrench Open quarterfinalist Stefanos Tsitsipas plugged into his YouTube channel during his run to the Australian Open semifinals in 2019.

At the U.S. Open last month, at the same stage of the competition, Kvitova wasted four match points in a loss to American Shelby Rogers. “It happen to me after such a long time that I didn’t win the match from the match point. Success has so far eluded the former second-ranked player on Roland Garros’ red clay. 13-seeded Andrey Rublev reached the last eight at Roland Garros for the first time. Tsitsipas has some treatement for an irritation to his eye at the start of the second set and saved two set points in the tiebreaker.

2 seed Karolina Pliskova at the French Open on Thursday, the conversation quickly turned to 2017. And just, like, the world doesn’t stop with winning only one Grand Slam. That’s not very different from where she was three years ago in Paris, ranked 47th and just two days past her 20th birthday when she became an impossible-to-predict Grand Slam champion. Pliskova, who came into the French Open dealing with a leg injury, was not the most gracious foe after Thursday’s loss. The first time I’m in the third round in a Grand Slam.

Serbia's Novak Djokovic serves against Lithuania's Ricardas Berankis in the second round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Thursday, Oct. 1, 2020. (AP Photo/Alessandra Tarantino)PARIS – At the mere mention of Novak Djokovic’s name, at the mere thought of sharing a court with a 17-time Grand Slam champion and the French Open’s No. He used these phrases: “really, really excited” and “really, really happy” and “really, really special.”Galan is, after all, ranked 153rd and never had won so much as one main-draw match at any major tournament until this week. Jelena Ostapenko, the 2017 French Open champ, plays 87th-ranked Paula Badosa, who arrived in Paris with a 1-5 Grand Slam record. “Well,” came Galan’s reply, “I was wondering that, to be honest.”And then he launched into a story about how he was “really, really nervous” before playing former top 10-member David Goffin in the Davis Cup Finals last November.

(AP Photo/Christophe Ena)PARIS – The Latest from the French Open (all times local):____6:10 p.m.Former runner-up Sloane Stephens lost in the second round for her earliest exit at Roland Garros since a first-round defeat on her debut in 2011. ___4:15 p.m.Novak Djokovic's biggest concern seemed to be dealing with a rare bit of sunshine during his second-round victory at Roland Garros. ___2:30 p.m.Australian Open champion Sofia Kenin reached the third round at Roland Garros by beating Ana Bogdan 3-6, 6-3, 6-2. ____1:10 p.m.Danish teen Clara Tauson's surprise run is over after losing to American player Danielle Collins 6-2, 6-3 in the second round. Pliskova's twin sister, Kristyna, was also playing a former French Open champion when she faced 2016 winner Garbiñe Muguruza.