Coco Gauff gave the home crowd a reason to celebrate at the US Open, moving into the fourth round while fellow Americans Taylor Fritz, Amanda Anisimova and Madison Keys suffered unexpected losses. The 2023 US Open champion, now 22, was matched against world No. 40 Cristina Bucsa.

Though she was not playing at her absolute peak, Gauff managed to grind out a 6-3, 6-4 victory, securing her place among the last 16 competitors. Her next challenge will be a quarter‑final showdown with compatriot Iva Jovic.

Speaking after the match, Gauff reflected on the contrast between day and night sessions. "Playing in the daylight felt completely different from the night matches," she said. "When I fell behind early in the second set, I reminded myself to accelerate my shots and stay aggressive." She added, "Bucsa is a crafty opponent who can change the tempo and slow the game down, which made it hard to find my rhythm.

Still, I'm pleased with how I fought through even when I wasn’t at my best." While Gauff’s performance lifted American hopes, the day was otherwise marked by shocking upsets for the United States men’s and women’s teams. Taylor Fritz, the ninth seed, appeared to be cruising toward the fourth round after taking a two‑set lead over Argentina’s Federico Cerundolo.

The 28‑year‑old, a finalist two years earlier, had not dropped a set all week and seemed poised to join Ben Shelton, Frances Tiafoe, Tommy Paul and Alex Michelsen in the round of 16. However, Cerundolo, who had surprised the tennis world with a Queen’s Club title earlier in the summer, clawed his way back in a marathon five‑setter, winning 3‑6, 4‑6, 6‑3, 6‑4, 6‑4. The comeback left the host nation still searching for its first men’s singles champion since Andy Roddick’s 2003 triumph over Juan Carlos Ferrero.

In the men’s draw, 20th seed Tommy Paul now faces Carlos Alcaraz in what promises to be a genuine test of the defending champion’s credentials after his recent injury layoff. Paul remarked, "I think I’ve played Carlos more than anyone else on tour, which is kind of crazy. We’ve had some great matches.

He and Jannik Sinner are the real tests now. Carlos is coming back strong, and we haven’t seen all of his game yet, but he’s already performing at a high level." Top seed Alexander Zverev also advanced smoothly, dispatching Alejandro Tabilo 6‑2, 7‑6, 6‑2 to reach the fourth round. The world No.

2 now prepares for a clash with 25th‑seeded Luciano Darderi, who earned his first appearance in a US Open fourth round by beating Australian wild‑card Dane Sweeny 6‑4, 6‑3, 6‑3. Fourteenth‑seeded Learner Tien secured a dramatic five‑set win over Jakub Mensik, prevailing 6‑3, 1‑6, 6‑7, 6‑3, 6‑4. The match stretched into the early hours of Sunday morning, with the 20‑year‑old clinching victory just after 1:30 a.m.

in New York. Tien’s achievement makes him the youngest American to reach the US Open fourth round since Andy Roddick matched the feat in 2002. In another upset, Belgian 28th seed Alexander Blockx defeated Italian fifth seed Flavio Cobolli 6‑7(4‑7), 6‑3, 6‑0, 6‑3, earning a spot in the fourth round where he will meet Argentina’s 24th‑seeded Cerundolo.

On the women’s side, former finalist Madison Keys, 31, was left dejected after surrendering a commanding lead to lose 1‑6, 7‑6(7‑3), 7‑5 to China’s Qinwen Zheng. Keys admitted, "I started strong, but then I got scared and couldn’t swing. Tennis just feels really hard right now, and that fear took over." Amanda Anisimova, who was runner‑up last year, made 46 unforced errors in a 6‑2, 7‑5 defeat to Austrian Anastasia Potapova, ending her campaign earlier than expected.

Meanwhile, French Open champion Mirra Andreeva, the Russian fifth seed, beat Czech Nikola Bartunkova 6‑2, 7‑6(7‑5) to advance to her first US Open fourth round, where she will face Potapova again. Six‑time Grand Slam winner Iga Świątek dug deep to overcome Czech 25th seed Marie Bouzkova 7‑6(7‑3), 7‑6(7‑3), securing her place in the fourth round. The Polish star, now the eighth seed, will meet Qinwen Zheng next.

"It was very physical with many long rallies," Świątek observed. "It wasn’t easy." In doubles, the legendary Williams sisters, Serena and Venus, avoided a fine for refusing to speak with the media after their loss on Friday night. The duo was defeated in three tight sets by the pair of Maya Joint and Chan Hao‑ching in their first match at Flushing Meadows in four years.

Although players are typically penalized for neglecting media duties, officials indicated that the Williams sisters would not be punished in this case. The US Open continues to be broadcast live on Sky Sports starting August 30, with streaming options available on NOW and the Sky Sports App without a contract. Fans in London can also attend the Laver Cup at The O2 from September 25‑27, which will be shown live on Sky Sports.