Jannik Sinner kept his US Open title defence on track with a battling four-set win over Denis Shapovalov on Saturday as home favourite Coco Gauff sailed into the women's last 16.
Seven-time Olympic gold medallist Biles was among the crowd at the Arthur Ashe Stadium as third seed Gauff suffered an error-strewn public unravelling that left her sobbing into her towel at one point in a calamitous first set.
Gauff, the reigning French Open champion, had prepared for the US Open by shaking up her coaching team on the eve of the tournament in an effort to fix her shaky service game, replacing coach Matt Daly with Gavin MacMillan, a biomechanics specialist.
Coco Gauff says she didn't hesitate to shake up her team just days before the US Open, hoping a new specialist coach can help shore up the serve that has been letting her down.
Gauff is the first American player to lift the trophy since Serena Williams in 2015.
The second-ranked American dug deep to claim a 6-7 (5/7), 6-2, 6-4 victory and her second major title after also defeating Sabalenka at the 2023 US Open.
World number one Aryna Sabalenka battled past four-times champion Iga Swiatek to reach her first French Open final on Thursday with a 7-6(1) 4-6 6-0 victory that ended the Pole's reign in Paris and snapped her 26-game winning streak in the tournament.
The 21-year-old was the runner-up to Iga Swiatek in a one-sided showpiece match in 2022.
Reigning Madrid Open champion Iga Swiatek suffered a crushing semi-final defeat by Coco Gauff on Thursday, with the American triumphing 6-1, 6-1.
Jannik Sinner kept his US Open title defence on track with a battling four-set win over Denis Shapovalov on Saturday as home favourite Coco Gauff sailed into the women's last 16.
Seven-time Olympic gold medallist Biles was among the crowd at the Arthur Ashe Stadium as third seed Gauff suffered an error-strewn public unravelling that left her sobbing into her towel at one point in a calamitous first set.
Gauff, the reigning French Open champion, had prepared for the US Open by shaking up her coaching team on the eve of the tournament in an effort to fix her shaky service game, replacing coach Matt Daly with Gavin MacMillan, a biomechanics specialist.
Coco Gauff says she didn't hesitate to shake up her team just days before the US Open, hoping a new specialist coach can help shore up the serve that has been letting her down.
Gauff is the first American player to lift the trophy since Serena Williams in 2015.
The second-ranked American dug deep to claim a 6-7 (5/7), 6-2, 6-4 victory and her second major title after also defeating Sabalenka at the 2023 US Open.
World number one Aryna Sabalenka battled past four-times champion Iga Swiatek to reach her first French Open final on Thursday with a 7-6(1) 4-6 6-0 victory that ended the Pole's reign in Paris and snapped her 26-game winning streak in the tournament.
The 21-year-old was the runner-up to Iga Swiatek in a one-sided showpiece match in 2022.
Reigning Madrid Open champion Iga Swiatek suffered a crushing semi-final defeat by Coco Gauff on Thursday, with the American triumphing 6-1, 6-1.
Coco Gauff said she was "disappointed but not completely crushed" after her scintillating start to the year came to an abrupt halt in the quarter-finals of the Australian Open on Tuesday.