Aug. 25 (UPI) -- Benjamin Bonzi weathered 21 aces at the U.S. Open, frequently frustrating Daniil Medvedev, to earn his second Grand Slam upset of the Russian this season.

The Frenchman converted 6 of 16 break points in the 6-3, 7-5, 6-7(5), 0-6, 6-4 first-round victory Sunday in Flushing, N.Y. He also beat Medvedev in the first round of Wimbledon 2025.

Medvedev lost control of his emotions several times during the nearly 4-hour match. He got into a verbal exchange with the chair umpire in the third set. And he smashed his racket into a bench after the match.

"I've never experienced something like that," Bonzi said on the ESPN broadcast.

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