Tsitsipas Revives Form by Defeating Fils at US Open

Stefanos Tsitsipas beat in-form Arthur Fils in four sets, reversing Fils’s 5-0 head-to-head advantage and claiming a major recent Grand Slam breakthrough. His coaching reset with Mouratoglou and Perrin appears to have produced tactical gains, while Fils’s energy dip and double faults leave questions about his post-Cincinnati momentum.