The US Open kicks off this week in New York City with a full house of spectators expected to attend. Fans won’t have the honor of watching either of the Williams sisters take the court, as both have withdrawn due to injury. But with Ash Barty and Naomi Osaka both in top form, viewers will be witness to two young stars whose zeniths could finally collide on the grand stage — if they can survive the array of talented competitors that stand in their way.

Here’s who to watch in New York during tennis’ final Grand Slam of the year:

The Favorites

Australia’s Ash Barty is heading into the US Open with all the momentum one could hope for at this point in the North American hard-court season.

The world #1 in rankings recently became the first player to claim five WTA singles titles in a single season since Serena Williams did it in 2014. That fifth trophy came last week at the Western & Southern Open in Cincinnati, where Barty worked her way through several Grand Slam contenders on her way to the title, including Victoria Azarenka, Barbora Krejcikova, and Angelique Kerber. When the 25-year-old won Wimbledon earlier this summer she proved her inaugural Grand Slam title at the 2019 French Open and subsequent number one ranking that persisted through the strange landscape of the pandemic were no fluke. But she has yet to reach the finals rounds of a US Open. Having lost in the round of 16 in both 2018 and 2019 and then opted out in 2020 due to the pandemic, she is poised to make a very deep run this week in New York.

The woman most likely to rain on the 2021 Barty parade is none other than Naomi Osaka. While her trajectory this year has been much more of a roller coaster, she has four hard-court Grand Slam titles to Barty’s zero. Out of the last four Grand Slam tournaments held, Osaka won the first two and then either withdrew or opted out of the next two. She hasn’t lost a single Grand Slam match since January 2020 at the Australian Open, way back in the Before-COVID-Times. Both she and Barty lost early at the Tokyo Olympics, but Osaka also lost in the round of 16 at the Western & Southern Open. Off the court, she continues to figure out how and whether she wants to meet current expectations of a highly publicized life. Only she knows the extent to which those struggles may be impacting her play.

Barty and Osaka are tied 2-2 in head-to-head matches. Even though Osaka dropped a spot from #2 to #3 in overall rankings last week, her and Barty are fortunately on opposite sides of the bracket. Even with a rocky lead up to the last Grand Slam of the year, Osaka is a proven champion with a stellar hard-court record and has a solid claim to the title of best women’s player in the world. Cheers to the tennis gods for a draw that leaves the door open for a Barty v. Osaka US Open final.

Contenders with momentum on their side

One of the most exciting players of 2021 has been Barbora Krejcikova. The 25-year-old from the Czech Republic just recently broke into the top ten and currently sits #9 overall, by far her best ranking in singles.

Krejcikova entered 2021 with two Grand Slam doubles titles from the 2018 French Open and 2018 Wimbledon and has watched her singles success finally take off. This year, she has won three WTA singles titles, including her first Grand Slam at the French Open. She also managed to capture her second French Open doubles championship that same week and then followed that up with a gold medal in doubles at the Tokyo Olympics. While the clay court seems to suit her well, she’s proving the hard court fits nicely too. She won the first hard-court tournament of the year at the Livesport Prague Open and made it to quarters of the Western & Southern Open before losing to Barty. 

In the #12 spot in WTA rankings, Swiss player Belinda Bencic is also enjoying a breakout 2021. Having won the Olympic singles gold medal and then following it up with a strong run at the Western & Southern Open where she lost in the quarters, Bencic is looking like a solid threat as she heads into her strongest Grand Slam event.

Karolina Pliskova and Angelique Kerber are another two to keep your eye on. Pliskova has gone deep in the two hard-court lead-up tournaments to the US Open and was on the opposite side of the net to Barty in the Wimbledon final. Having made it to the quarters, semis, or final of a Grand Slam eight times, she appears to be on the precipice of finally tipping that scale. Kerber, on the other hand, has experienced Grand Slam title glory three times in her career and with appearances in this year’s Wimbledon semis and the Western & Southern Open semis, she is definitely a threat.

The Question Marks

Aryna Sabalenka, the woman who just surpassed Osaka to claim the #2 overall ranking, is still a bit of an unknown heading into New York. She put her name on the map this summer by making it to the semis of Wimbledon and she also got to the semis of one hard-court tourney early in August, but lost in the first round of another. Whether the 23-year-old from Belarus has something special in store for New York is a bit of a guess.

Bianca Andreescu hasn’t had the strong return from injury that many were looking forward to during this hard-court season. The 2019 US Open champion has had a rough showing for 2021, and her recent hard-court tournaments have been no exception. But at only 21 years old and with a new coach on board she has plenty of time to back up her 2019 victory even if it’s not imminent.

Veterans Simona Halep and Victoria Azarenka will also need a bit of luck on their side in order to make a strong run this week. With injuries and early exists from lead-in tournaments, the stars don’t seem to be aligned for either of the two-time Grand Slam champions. 

US Open first-round play begins Monday, Aug. 30 and continues until the two women left standing face off for the title at 4pm ET on Saturday, September 11th.

USWNT stalwart Alex Morgan will miss at least one week of NWSL action after suffering a left ankle knock in her last club appearance, Wave manager Casey Stoney said on Thursday.

Morgan was helped off the field after rolling her ankle in the later stages of the Wave’s 1-0 loss to the Orlando Pride last weekend, despite the San Diego side being out of available substitutes.

“She's got an ankle injury and she's out for this weekend, and then it'll be week by week from there,” Stoney said, confirming that Morgan’s been ruled out for Saturday’s showdown with NWSL newcomer Bay FC.

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Depending on its severity, Morgan’s ankle issue might have larger ramifications than missing a few weeks of NSWL play. Morgan was added to the team's Gold Cup roster after an ACL injury sidelined young striker Mia Fishel, and she's since made a number of USWNT starts in the team's Gold Cup and SheBelieves wins. A long-term injury could potentially derail the center forward’s Olympic plans.

With her return timeline uncertain, it's possible the injury could also impact Morgan's ability to participate in new head coach Emma Hayes' first U.S. friendlies in June and July.

Morgan's injury concerns aren't uncommon in the U.S. player pool, but add a sense of urgency as Hayes eyes the NWSL for top-performing players in the upcoming weeks. Gotham's Tierna Davidson and Rose Lavelle have also been dealing with injuries: Lavelle has yet to appear for Gotham, while Davidson exited last weekend's match early with a hamstring injury.

Gotham has yet to issue an update concerning Davidson's status.

This week, legendary Brazilian superstar Marta announced that she’ll retire from the national team at the end of 2024.

In an interview with CNN Esportes published Thursday, the iconic footballer confirmed that she would be hanging up her boots regardless of whether or not she ends up making Brazil's 18-player roster for the 2024 Paris Olympics. 

“If I go to the Olympics, I will enjoy every moment, because regardless of whether I go to the Olympics or not, this is my last year with the national team,” she said. “There is no longer Marta in the national team as an athlete from 2025 onwards.”

Marta will retire as a giant of the women's game, having appeared in five Olympics and multiple World Cups. When discussing her retirement, she stressed confidence in the rising generation of Brazilian players, noting that she was, “very calm about this, because I see with great optimism this development that we are having in relation to young athletes." 

The statement echoes back to a plea she made during the 2019 FIFA Women’s World Cup after Brazil lost to France 2-1 in the Round of 16. “It's wanting more. It's training more. It's taking care of yourself more. It's being ready to play 90 plus 30 minutes. This is what I ask of the girls,” she said then, addressing the young players following in her footsteps. 

In 2023, she signaled a farewell to World Cup competition with the same sentiment, telling media, “We ask the new generation to continue where we left off.”

If selected for the 2024 Olympic team, Marta has a shot at extending her own consecutive-scoring record with the ability to score in an unbelievable sixth-straight Olympic Games. She currently stands as Brazil’s top goalscorer, racking up 116 career goals in 175 matches, as well as the leading goalscorer in any World Cup, women’s or men’s, with 17 to her name. 

Marta will continue to play for the NWSL’s Orlando Pride through at least the end of 2024. The longtime forward and club captain has already contributed to multiple goals this season.

U.S. Soccer announced Tuesday that the USWNT will play their last home game on July 16th in the lead-up to the 2024 Summer Olympic Games in Paris.

The 2024 Send-Off Match against Costa Rica will take place at Washington, DC’s Audi Field — home to both the Washington Spirit and DC United — at 7:30 p.m. ET on Tuesday, July 16th. The friendly rounds out a four-game Olympic run-up campaign under incoming head coach Emma Hayes’ side, with the last two set to feature the finalized 2024 U.S. Olympic Women’s Soccer Team roster.

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Hayes will appear on the USWNT sideline for the first time this June, helming the team as they embark on a two-game series against Korea Republic hosted by Dick’s Sporting Goods Park in Commerce City, Colorado on June 1st followed by Allianz Stadium in St. Paul, Minnesota on June 4th. 

The team is then scheduled to meet a talented Mexico squad on July 13th at Gotham FC’s Red Bull Arena in Harrison, New Jersey, where the Olympic-bound lineup will attempt to rewrite February’s shocking 2-0 loss to El Tri Femenil in the group stages of this year’s Concacaf W Gold Cup. And while clear roster favorites have emerged from both of this year’s Gold Cup and SheBelives Cup rosters, a spate of recent and recurring injuries means making it to the Olympics is still largely anyone’s game.

Broadcast and streaming channels for the USWNT's final July 16th friendly at Audi Field include TNT, truTV, Universo, Max, and Peacock.

The USA Basketball Women's National Team is still considering Caitlin Clark for a spot on the Paris Olympics squad, says selection committee chair Jennifer Rizzotti. 

On Monday, Rizzotti told the AP that the committee will be evaluating the college phenom’s Olympic prospects by keeping a close eye on her first few weeks of WNBA play with Indiana.

The move is somewhat unconventional. While Clark was invited to participate in the 14-player national team training camp held earlier this month — the last camp before Team USA’s roster drops — she was unable to attend due to it coinciding with Iowa’s trip to the NCAA Women’s Final Four.

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Judging by the immense talent spread throughout the league in what might be their most hyped season to date, competition for a piece of the Olympic pie could be fiercer than ever before.

"You always want to introduce new players into the pool whether it's for now or the future," said Rizzotti. "We stick to our principles of talent, obviously, positional fit, loyalty and experience. It's got to be a combination of an entire body of work. It's still not going to be fair to some people."

Of course, Clark isn’t the first rookie the committee has made exceptions for. Coming off an exceptional college season that saw her averaging 19.4 points, 8.7 rebounds, and 4 assists per game for UConn, Breanna Stewart was tapped to represent the U.S. at the 2016 Olympics in Brazil less than two weeks after being drafted No. 1 overall by the Seattle Storm. Eight years prior, fellow No. 1 pick Candace Parker punched her ticket to the 2008 Games in Beijing just two weeks after making her first appearance for the L.A. Sparks.

In the lead-up to Paris’ Opening Ceremony on July 26th, USA Basketball Women’s National Team is scheduled to play a pair of exhibition games. They'll first go up against the WNBA's finest at the July 20th WNBA All-Star Game in Phoenix before facing Germany in London on July 23rd.

While an official roster announcement date hasn’t yet been issued, players won’t find out if they’ve made this year’s Olympic cut until at least June 1st.