A tennis fan was caught red handed while trying to steal something from the No. 1 player in the world at the 2025 US Open. Following Jannik Sinner's fourth round win over Alexander Bublik on Monday, September 1, the Italian tennis star stopped to sign some autographs for fans courtside inside Arthur Ashe Stadium. In a video shared by Olly Tennis via X, a man was seen attempting to unzip Sinner's racket bag, which was slung over his shoulder.