Japanese tennis player Yoshihito Nishioka collapsed during his first-round match at the 2024 U.S. Open against Miomir Kecmanović, forcing him to retire due to severe cramping amidst high humidity. Nishioka experienced intense pain, with spasms affecting various parts of his body, and required a wheelchair to leave the court after receiving medical assistance. Despite a competitive match where Nishioka won two sets, he ultimately retired with Kecmanović leading 7-6(2), 2-6, 5-7, 7-5, 1-0. Nishioka expressed gratitude for the support he received and indicated plans to skip doubles and return to Japan to recover. Kecmanović will advance to face Lorenzo Musetti in the second round. This incident has raised concerns about player health and safety during matches in extreme weather conditions.