J*panese T*nnis St*r C*llapses D*ring M*tch At *.S. *pen

Japanese tennis sensation Yoshihito Nishioka collapsed during his first-round match at the U.S. Open.

In the final set of the contest against Serbian Miomir Kecmanović, the 28-year-old fell to the ground on the court.

Medical personnel and trainers rushed to the aid of Nishioka and provided care.

Nishioka, the top-ranked