Flushing Meadows lived up to its reputation for chaos on Sunday night, as France’s Benjamin Bonzi knocked out 13th seed Daniil Medvedev in a five-set rollercoaster that had everything: drama, delays, boos, and even a racquet smash.

Bonzi held his nerve to win 6-3, 7-5, 6-7 (5), 0-6, 6-4 in just under four hours, sending the 2021 US Open champion packing in the very first round.

The turning point came late in the third set. Serving for the match at 5-4, Bonzi had a match point when play was suddenly stopped — a photographer wandered onto the court. Chair umpire Greg Allensworth gave Bonzi a fresh first serve due to “outside interference.”

Medvedev exploded. He stormed across the court, shouting at the umpire:

“Are you a man? Are you a man?” before telling the crowd: “He wants to go home, guys. He gets paid by the match, not by the hour.”

The Louis Armstrong Stadium erupted into boos and jeers, forcing a six-minute stoppage before play resumed. Somehow, Medvedev saved match point and stole the set in a tiebreak, then bageled Bonzi 6-0 in the fourth to drag it into a decider.

But the Frenchman regrouped in the fifth. Despite twice going down a break, he fought back and finally broke Medvedev to seal the biggest win of his career.

Medvedev, meanwhile, slumped in his chair and smashed his racquet in frustration, becoming the first former champion to exit this year’s US Open. It caps a miserable year at the majors for the Russian, with just one second-round appearance.

The chaos echoed Medvedev’s 2019 antics on the same court, when he taunted booing fans after snatching a towel from a ball kid, clashing with the umpire, and flashing his middle finger — an episode that earned him fines but also, bizarrely, boosted his reputation as the US Open’s favorite villain.