Coco Gauff claimed her second Cincinnati Open title on Sunday, defeating fellow American Jessica Pegula 6–2, 6–4 in the first all-American women's final at the event in 56 years. The victory marks a dramatic turnaround for Gauff, who geared her season around the US Open after struggling with her serve a year ago. On the men's side, Arthur Fils captured his breakthrough Masters 1000 title, defeating American Frances Tiafoe 6–3, 1–6, 6–0 in the final. The 22-year-old's first crown at 1000 level sends him into the US Open ranked No.
11 and adds momentum after his earlier injury struggles. But the week's biggest story comes off the court: world No. 1 Jannik Sinner has withdrawn from the US Open with a right knee issue, opening the men's draw wide. His absence, alongside a growing list of 16 withdrawals ahead of the season's final Grand Slam, reshapes the favourite narrative. Serena Williams will return to the US Open for mixed doubles, pairing with Carlos Alcaraz, while the women's field sees Gauff and Pegula in form and questions lingering over Elena Rybakina and others. The US Open begins next week in New York.