Danielle Collins has announced this season will be her last on the elite women's tour.

The rising heat and humidity at the U.S. Open has prompted organizers to adopt a new policy that allows them to partially close the roofs on the main stadiums.

The 2023 U.S. Open features several players who have made comebacks to tennis after being away for a while.

Roberto Bautista Agut made it a short stay in the U.S. Open for Nick Kyrgios, who had enough time to fit in plenty of complaining in three sets.

Naomi Osaka made quick work of her first match in nearly two months.

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.

French Open champion Barbora Krejcikova’s twin titles at Roland Garros have allowed her to jump in the WTA rankings to No. 15 in singles and No. 1 in doubles.

American 17-year-old Coco Gauff completely overwhelmed Ons Jabeur 6-3, 6-1 at the French Open to become the youngest woman to reach the quarterfinals at any Grand Slam tournament in 15 years.

Novak Djokovic has rallied from a two-set deficit to reach the French Open quarterfinals for the record 15th time.

Matteo Berrettini has earned his debut trip to the French Open’s fourth round and joined a couple of teenagers from Italy to give their country a trio of men in Week 2 of a Grand Slam tournament for the first time.

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.

Rafael Nadal has improved his French Open career record to 101-2 as he pursues a 14th championship there and his record-breaking 21st Grand Slam title overall.

(AP Photo/Hamish Blair)Naomi Osaka's Australian Open championship moved her up one spot to No. 2 in the WTA rankings Monday, while men's finalist Daniil Medvedev rose to a career-best No. Aslan Karatsev's historic run from qualifying to the final four before losing to nine-time Australian Open champion Djokovic allowed him to vault 72 places from 114th to 42nd. Barty took nearly a full year off, for example, but still has her points from winning the 2019 French Open and reaching the semifinals at the 2020 Australian Open. Aryna Sabalenka now leads the WTA doubles rankings after pairing with Elise Mertens to win the Australian Open women's doubles title.

Japan's Naomi Osaka, right, holds the Daphne Akhurst Memorial Cup after defeating United States Jennifer Brady, left, in the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021. The 25-year-old American won't be leaving with the Australian Open title after losing to Naomi Osaka 6-4, 6-3 on Saturday. “I mean, I made my first Grand Slam final. Her Grand Slam record was 15-14, and her overall tour-level mark as a pro was below .500, at 54-57. “I don’t think, you know, she’s God,” Brady said about Osaka, who is now a four-time major champion at age 23.

Japan's Naomi Osaka holds the Daphne Akhurst Memorial Cup aloft defeating United States Jennifer Brady in the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021. Osaka improved to 4-0 in Grand Slam finals by grabbing six consecutive games to pull away in what initially was a tight contest, beating Brady 6-4, 6-3 at Melbourne Park on Saturday. For me, I feel like every opportunity that I play a Slam is an opportunity to win a Slam,” said the 23-year-old Osaka, who will move up to No. I think if you’re not feeling OK, it’s OK to not feel OK,” Osaka said. And as much as Osaka makes plain that she wants to keep adding to her Grand Slam collection, there are larger goals, too.

(AP Photo/Hamish Blair)MELBOURNE – The Latest on the Australian Open tennis tournament (all times local):10:55 p.m.Barbora Krejcikova and Rajeev Ram have combined for their second Australian Open mixed doubles title in three years with a 6-1, 6-4 win over Sam Stosur and Matthew Ebden in the championship match. Krejcikova and fellow Czech Katerina Siniakova lost the women’s doubles final on Friday to Elise Mertens and Aryna Sabalenka. He and Joe Salisbury will attempt to defend their Australian Open doubles title in Sunday’s final against Ivan Dodig and Filip Polasek. ___9:03 p.m.Naomi Osaka has won her fourth Grand Slam title by pulling away to beat Jennifer Brady 6-4, 6-3 in the Australian Open final. She is 3-0 in previous Grand Slam finals, winning the Australian Open in 2019 and the U.S. Open in 2018 and 2020.

Japan's Naomi Osaka, left, is congratulated by United States' Serena Williams after winning their semifinal match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Feb. 18, 2021. Sure, it’s clearly possible that Osaka could be beaten by the 22nd-seeded American Jennifer Brady in the title match at Melbourne Park on Saturday. She pushed Osaka to three sets before losing to her in the U.S. Open semifinals last September, then shrugged off a two-week hard quarantine in Australia to reach her first Grand Slam final. Who is seeking her second Australian Open title and fourth Slam trophy — and she is still only 23. Osaka often speaks about wanting more consistency, whether that's at lower-level WTA tournaments or at every Grand Slam event.

United States' Jennifer Brady celebrates after defeating Karolina Muchova of the Czech Republic in their semifinal match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Feb. 18, 2021. Serving for the win against Karolina Muchova in the Australian Open semifinals, Brady needed to get through an 18-point game to close things out. I have earned the right to be sitting here, to be playing in a final," Brady said. Watching a Grand Slam final, you look at two players and you’re, like, ‘Wow, that’s awesome that they’re in the final.' Actually, Brady thinks that could have been a help, because it forced her to “reset mentally,” she explained, and rest her body and mind.

United States' Serena Williams reacts during a press conference following her semifinal loss to Japan's Naomi Osaka at the Australian Open tennis championship in Melbourne, Australia, Thursday, Feb. 18, 2021. On Saturday, at 7:30 p.m. local time (3:30 a.m. EST), Osaka will meet first-time Grand Slam finalist Jennifer Brady of the United States for the championship. “My heart is racing.”She lost to Osaka in a three-set thriller in the U.S. Open semifinals last September. 1 Novak Djokovic vs. Aslan Karatsev, a qualifier from Russia who is ranked 114th and playing in his first Grand Slam tournament. Djokovic is seeking a ninth Australian Open title and 18th Grand Slam trophy overall.

All rights reservedMELBOURNE – The Latest on the Australian Open (all times local):9:45 p.m.Novak Djokovic reached the Australian Open final for the ninth time by beating No. ___7 p.m.Barbora Krejcikova has set up a shot at an Australian Open doubles double over the next couple of days. ___3:35 p.m.Naomi Osaka has stopped Serena Williams’ latest bid for a record-tying 24th Grand Slam singles title in the Australian Open semifinals. The 23-year-old Osaka also won last year's U.S. Open and the 2019 Australian Open. Djokovic is seeking a ninth Australian Open title and 18th Grand Slam trophy overall.

Spain's Rafael Nadal reacts after winning a point against Greece's Stefanos Tsitsipas during their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Feb. 17, 2021. (AP Photo/Andy Brownbill)MELBOURNE – Rafael Nadal entered his Australian Open quarterfinal with a 223-1 record when grabbing the first two sets of a Grand Slam match. Neither Tsitsipas nor Medvedev has won a Grand Slam tournament. 1-ranked Novak Djokovic will face 114th-ranked qualifier Aslan Karatsev, who is making his Grand Slam debut. It looked like it could be a repeat of their 2019 semifinal in Australia, when Nadal overwhelmed Tsitsipas and allowed him to win just six games.

Karolina Muchova of the Czech Republic receives medical treatment during her quarterfinal against Australia's Ash Barty at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Feb. 17, 2021. (AP Photo/Andy Brownbill)MELBOURNE – Top-ranked Ash Barty built a big lead in the Australian Open quarterfinals before her opponent took a medical timeout and left the court. Brady reached her second Grand Slam semifinal, following a run that far at the U.S. Open in September. Muchova played poorly at the start of her second major quarterfinal, and Barty raced to a 5-0 lead while losing only six points. This was the first Grand Slam tournament since last year's Australian Open to permit thousands of people to sit in the stands.

(AP Photo/Hamish Blair)MELBOURNE – The Latest on Day 10 of the Australian Open (all times local):11:55 p.m.Rafael Nadal’s bid for a men’s-record 21st Grand Slam title has ended with a five-set loss to Stefanos Tsitsipas in the Australian Open quarterfinals. He has been pushed to a fifth set by Stefanos Tsitsipas in the Australian Open quarterfinals. ___10 p.m.Rafael Nadal's Grand Slam set streak has ended at 35 after he dropped one against Stefanos Tsitsipas in the Australian Open quarterfinals. The pair were teammates when Russia won the ATP Cup team event on the eve of the Australian Open. Kenin lost to Kaia Kanepi in straight sets in the second round of her title defense at the Australian Open last week.

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.

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.

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. The seventh-seeded Rublev will meet Casper Ruud of Norway in the fourth round. 5 seed Stefanos Tsitsipas beat Mikael Ymer of Sweden 6-4, 6-1, 6-1 in the third round. ___3:35 p.m.Unseeded American Mackenzie McDonald has matched his best Grand Slam result by reaching the round of 16 at the Australian Open.

United States' Sofia Kenin leaves the court following her second round loss to Estonia's Kaia Kanepi during at the Australian Open tennis championship in Melbourne, Australia, Thursday, Feb. 11, 2021. (AP Photo/Rick Rycroft)MELBOURNE – Sofia Kenin knew this would be a tough test at the Australian Open, a potentially early end to her first attempt to defend a Grand Slam title. Upon realizing she probably would be playing big-hitting veteran Kaia Kanepi in the second round, Kenin acknowledged, she “maybe kind of broke down a little bit.”Kenin was right to be worried. Kenin walked off the court crying after a 6-2, 6-2 loss last week in a tuneup event at the site of the Australian Open and explained afterward that her left leg was sore. 21 Alex de Minaur and Mackenzie McDonald, who beat 22nd-seeded Borna Coric 6-4, 6-2, 4-6, 6-4, and 39-year-old Feliciano Lopez.

“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.

France's Kristina Mladenovic plays a shot against Germany's Laura Siegemund in the first round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Tuesday, Sept. 29, 2020. (AP Photo/Michel Euler)PARIS – Kristina Mladenovic blamed her French Open meltdown on her U.S. Open lockdown — and she wasn’t too pleased about a no-call on a double bounce that helped her opponent avoid ceding the first set Wednesday, either. Mladenovic was furious that chair umpire Eva Asderaki didn’t spot the extra bounce that came during a 10-stroke exchange. “If she would have done it, she would have all my respect and be super fair play,” Mladenovic said. “It’s brutal for the body when you (have) eight days (of) lockdown in a hotel room,” Mladenovic said Wednesday.

Serbia's Novak Djokovic reacts after missing a shot against Sweden's Mikael Ymer in the first round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Tuesday, Sept. 29, 2020. “Winning a 6-love first set is the best possible way to start a Grand Slam," he said. With Dominic Thiem, the U.S. Open champion and two-time French Open runner-up, watching from the stands in a black winter coat, Djokovic broke Ymer nine times and ended up with a 32-12 edge in total winners. Others feeling that way on Day 3 at the year’s last Grand Slam tournament included No. Tsitsipas trailed Jaume Munar before advancing 4-6, 2-6, 6-1, 6-4, 6-4, while Rublev knelt on court and covered his face with his hands after turning things around to beat Sam Querrey 6-7 (5), 6-7 (4), 7-5, 6-4, 6-3.

Jennifer Brady of the U.S. prepares to serve against Denmark's Clara Tauson in the first round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Tuesday, Sept. 29, 2020. But tennis players cannot home-work. And so, as now-rare world travelers, they've also become unwitting first-hand witnesses of how the pandemic is battering the airline industry. But the novelty wore off after near-constant flying became part of her tennis job, until “I really didn't like it, especially long-haul." “The best thing during the lockdown was that I didn’t have to go on the plane.”___More AP tennis: https://apnews.com/apf-Tennis and https://twitter.com/AP_Sports

Victoria Azarenka, of Belarus, reacts after defeating Serena Williams, of the United States, during a semifinal match of the US Open tennis championships, Thursday, Sept. 10, 2020, in New York. (AP Photo/Seth Wenig)NEW YORK – The Latest on on the U.S. Open tennis tournament (all times local):___3:30 p.m.Naomi Osaka and Victoria Azarenka were supposed to play two weeks ago in Flushing Meadows. Osaka and Azarenka will meet in the U.S. Open women's final, with the winner earning her third Grand Slam singles title. She went on to win another in 2019 at the Australian Open, a title Azarenka won twice. Azarenka won that tournament, normally held in Ohio but moved because of the coronavirus pandemic, when Osaka had to pull out of the final with a hamstring injury.

And now Osaka, still just 22, is one victory away from a third Grand Slam title. Osaka served at up to 120 mph; Brady reached 117 mph. That’s when, at 2-1 in the third set, Osaka earned her first break point with a backhand that clipped the net tape and trickled over. In the second set, though, it was Osaka who blinked, and Brady who collected the first break of the evening. Heady stuff for Brady, a 25-year-old from Pennsylvania who never had been past the fourth round of a Grand Slam tournament before this week.

Naomi Osaka, of Japan, walks on the court before playing Jennifer Brady, of the United States, during a semifinal match of the US Open tennis championships, Thursday, Sept. 10, 2020, in New York. (AP Photo/Seth Wenig)NEW YORK – The Latest on the U.S. Open tennis tournament (all times local):___Naomi Osaka is trying to return to the U.S. Open women's final, facing first-time Grand Slam semifinalist Jennifer Brady. Osaka was the 2018 champion at Flushing Meadows and followed that up by winning the Australian Open the next January. Pavic’s lob winner produced another break to give his team a 4-2 lead in the final set, and he served out the match at love. Naomi Osaka will play American Jennifer Brady in the first women's semifinal, and Serena Williams will take on Victoria Azarenka.

Jennifer Brady, of the United States, serves to Yulia Putintseva, of Kazakhstan, during the quarterfinals of the US Open tennis championships, Tuesday, Sept. 8, 2020, in New York. (AP Photo/Seth Wenig)NEW YORK The Latest on the U.S. Open tennis tournament (all times EDT):___1:30 p.m.American Jennifer Brady has become this year's first U.S. Open semifinalist by beating Yulia Putintseva 6-3, 6-2. The quarterfinals at the U.S. Open are underway, with American Jennifer Brady facing No. Brady, seeded 28th, is the first former college player to reach the women's quarterfinals at the Open since Gigi Fernandez in 1994. In the other women's match Tuesday, two-time major champion Naomi Osaka will play American Shelby Rogers, who is ranked 93rd.

Jennifer Brady, of the United States, reacts after defeating Yulia Putintseva, of Kazakhstan, during the quarterfinals of the US Open tennis championships, Tuesday, Sept. 8, 2020, in New York. (AP Photo/Seth Wenig)NEW YORK American Jennifer Brady said she was nervous at the start of her first career Grand Slam quarterfinal, but it didn't show. Brady notched the biggest victory yet in her breakout run at the U.S. Open, beating Yulia Putintseva of Kazakhstan on Tuesday, 6-3, 6-2. Brady, 25, is playing in her 13th Grand Slam event and is seeded in a major tournament for the first time. The last couple of times I played her, I got caught in playing her game, Brady said.

Jennifer Brady, of the United States, serves to Angelique Kerber, of Germany, during the fourth round of the US Open tennis championships, Sunday, Sept. 6, 2020, in New York. (AP Photo/Seth Wenig)NEW YORK The Latest on the U.S. Open tennis tournament (all times local):12:45 p.m.Jennifer Brady has extended her dominant showing at the U.S. Open and reached the quarterfinals for the first time. The hard-hitting, 25-year-old Brady knocked off Angelique Kerber 6-1, 6-4 in the opening match Sunday. Brady, who is one of four American women still alive in singles, will face either Petra Martic or Yulia Putintseva in her first Grand Slam quarterfinal match. The day begins with Angelique Kerber a three-time Grand Slam champion who won at Flushing Meadows in 2016 trying to extend her strong run through the bracket, facing 28th-seeded Jennifer Brady.

Naomi Osaka, of Japan, serves to Marta Kostyuk, of the Ukraine, during the third round of the US Open tennis championships, Friday, Sept. 4, 2020, in New York. Another past U.S. Open champion moving into the fourth round Friday was 2016 titlist Angelique Kerber, who defeated 20-year-old American Ann Li 6-3, 6-4. Kerbers next opponent is another American, 28th-seeded Jennifer Brady, a 6-3, 6-3 winner against Caroline Garcia. The key moment: Kostyuk held five break points that could have given her a 3-1 lead in the final set. Each time on court during the tournament, Osaka is wearing a different mask in memory of a victim of racial injustice.

Jennifer Brady holds the championship trophy after defeating Jil Belen Teichmann in the WTA tennis tournament championship match in Nicholasville, Ky., Sunday, Aug. 16, 2020. Brady won 6-3, 6-4 on the way to her first WTA title. Maybe I wasn't using my legs enough ... or the toss was coming a little bit to the left. A little bit of everything, said Brady, who eliminated 16-year-old Coco Gauff in the semifinals. I put a little bit more expectations on myself to perform well, so I was getting a little bit frustrated.