MACKENZIE MCDONALD

Jannik Sinner has overcome a poor start at the U.S. Open and won his first match since news of his doping case emerged a week ago.

Jannik Sinner has pulled out of the Paris Masters in a rare scheduling protest with the fatigued Italian criticizing organizers for failing to give him enough time to rest following an early morning finish in his previous match.

The United States swept its way into the group stage of the Davis Cup Finals, getting the winning point in a 4-0 victory over Uzbekistan from the doubles team of Rajeev Ram and Austin Krajicek.

It was a long road back to elite-level tennis for Mackenzie McDonald.

Rafael Nadal's manager says the 22-time Grand Slam champion injured his left hip flexor during his loss at the Australian Open and could need about six to eight weeks to fully recover.

Rafael Nadal has withdrawn from the upcoming hard-court tournament in Montreal because of the abdominal injury that caused him to pull out of Wimbledon ahead of the semifinals.

Maxime Cressy had heard people chanting his name in college, when he twice clinched big wins against his rival school.

Novak Djokovic has started his bid to make history at the U.S. Open with a four-set victory over Danish teenager Holger Vitus Nodskov Rune.

Karolina Pliskova and Reilly Opelka were among the early winners on the second day of the U.S. Open.

Jannik Sinner became the first teenager to win an ATP 500 event, beating Mackie McDonald 7-5, 4-6, 7-5 to take the Citi Open title.

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

United States' Jessica Pegula celebrates after defeating Ukraine's Elina Svitolina in their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Feb. 15, 2021. “I’m just happy I’m here; she's been playing some good tennis, solidifying herself as a top player.”AdThe 61st-ranked Pegula beat No. “A lot of people were complaining, and I told myself I wasn’t going to complain,” Brady said. Also on that half of the draw, Rafael Nadal moved closer to a men's-record 21st Grand Slam trophy by overwhelming No. “I’m super excited for her making her first Grand Slam quarterfinal.

Karolina Muchova of the Czech Republic serves to compatriot Karolina Pliskova during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 13, 2021. Crowds were gone from the Australian Open on Saturday because of a five-day hard lockdown imposed by the state government to contain an outbreak of COVID-19 cases. And with the lack of fans, players were faced with an all-too-familiar feeling: a distinct lack of buzz. The Australian Open was allowed to continue during the lockdown — but without fans. He struggled without a crowd in a warm-up tournament before the Australian Open.

Russia's Daniil Medvedev gestures after defeating Serbia's Filip Krajinovic in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 13, 2021. (AP Photo/Andy Brownbill)MELBOURNE – Daniil Medvedev finally worked out how to a win a five-setter. The fourth-seeded Medvedev was 0-6 in Grand Slam matches that went to five sets, and his Australian Open third-round match against No. here I was really calm to finish the match," Medvedev said. Medvedev, the U.S. Open finalist last year, will next play McDonald, a player he compared with Roger Federer in style.

(AP Photo/Hamish Blair)MELBOURNE – The Latest from the Australian Open (all times local):12:45 a.m.Australian Open organizers say the player from Greece’s ATP Cup team who tested positive for COVID-19 on arrival in South Africa had returned a negative result the day he left Melbourne. Michail Pervolarakis played in the Greek team with Stefanos Tsitsipas last week in one of the six tuneup tournaments for the Australian Open. The Australian Broadcasting Corp. reported that Tennis Australia confirmed Pervolarakis tested negative for the coronavirus on Feb. 9. He reached the fourth round at Melbourne Park for the 14th time in 16 trips. The top-seeded Australian beat Ekaterina Alexandrova of Russia 6-2, 6-4 to reach the fourth round of the Australian Open for the third straight year.

Italy's Fabio Fognini, right, speaks as compatriot Salvatore Caruso walks away after their second round match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Feb. 11, 2021. (AP Photo/Hamish Blair)MELBOURNE – The Latest from the Australian Open (all times local):11:20 p.m.Fabio Fognini and Salvatore Caruso clearly still hadn’t had enough of their all-Italian second-round duel at the Australian Open even after four hours and five sets. ___9:30 p.m.Fifth-seeded Elina Svitolina beat 16-year-old Coco Gauff 6-4, 6-3 in the second round of the Australian Open. After her first-round win, Kenin talked about how nervous she was as the defending champion at a major for the first time. Kenin won her first Grand Slam singles title last year with a three-set victory over Garbiñe Muguruza at Melbourne Park.

United States' Serena Williams makes a backhand return to Australia's Daria Gavrilova during a tuneup tournament ahead of the Australian Open tennis championships in Melbourne, Australia, Monday, Feb. 1, 2021. (AP Photo/Hamish Blair)MELBOURNE – Serena Williams found a silver lining in the delayed start to the Australian Open, the season-opening Grand Slam tournament that is starting three weeks later than usual because of the COVID-19 pandemic. Williams is playing in the Yarra Valley Classic, along with top-ranked Ash Barty and defending Australian Open champion Sofia Kenin. “So I definitely was pushing the limits, but I’m here.”Williams has been stalled on 23 major singles titles since the 2017 Australian Open, when she was two months pregnant with now-3-year-old daughter Olympia. AdFrances Tiafoe, an Australian Open quarterfinalist in 2019, lost to Corentin Moutet 3-6, 6-4, 6-4.

(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.