Japanese tennis star Yoshihito Nishioka collapses on court, exits in wheelchair during US Open match

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The final set of a high-stakes first-round match at the U.S. Open between Japanese star Yoshihito Nishioka and Serbian Miomir Kecmanović was marred by a health scare.

Nishioka suddenly fell to the ground in the fifth set near the baseline. He was in visible pain and remained on the court at the Billie Jean King National Tennis Center for several minutes.

Nishioka appeared to battle serious cramping earlier in the match as temperatures in the New York City borough of Queens climbed into the mid-80s Monday. A heat advisory for the area remains in place for the area through Tuesday night.

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Yoshihito Nishioka of Japan serves against Miomir Kecmanović of Serbia during a first-round men's singles match at the 2024 U.S. Open at the USTA Billie Jean King National Tennis Center Aug. 26, 2024, in Flushing Meadows. (Matthew Stockman/Getty Images)

Medical personnel and trainers provided Nishioka with water as they treated the 28-year-old. Nishioka eventually required the assistance of a wheelchair to leave the court. 

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He was forced to retire from the match, which allowed his opponent to advance to the second round of the Grand Slam tournament. Kecmanović will face Italian Lorenzo Musetti in the next round Wednesday.

Yoshihito Nishioka of Japan celebrates a point against Miomir Kecmanović of Serbia during a first-round men's singles match at the 2024 U.S. Open at the USTA Billie Jean King National Tennis Center Aug. 26, 2024, in the Flushing neighborhood of the Queens borough of New York City.