Stefanos Tsitsipas’s US Open campaign came to a sudden halt on Day 5, as Germany’s Daniel Altmaier scored another trademark Grand Slam upset with a 7-5 fifth-set triumph. The contest, which stretched past four hours, had everything—gritty shot-making, crowd tension, and even a rare coaching violation against Tsitsipas’s father, Apostolos.
Chair umpire James Keothavong was forced to intervene on more than one occasion. At one point, he called out sections of the crowd for their unruly behavior, reminding fans to keep the atmosphere sporting. Soon after, Apostolos Tsitsipas received a code violation for coaching —something almost unheard of since on-court coaching was broadly legalized in 2022. The infraction stemmed from him delivering verbal instructions to Stefanos while his son was