At Wimbledon in 2017, Medvedev was fined after emptying his wallet and throwing coins at umpire Mariana Alves following a five-set loss to Belgium's Ruben Bemelmans. He disputed a series of controversial calls and said after the match "it was very hot out there" and couldn't remember if he'd asked for Alves' removal.

Daniil Medvedev’s match was delayed more than six minutes between points Sunday night, after a photographer entered the court on match point and the 2021 U.S. Open champion became enraged by the chair umpire’s decision to award his opponent a first serve.

Controversy arose early in the US Open, as Daniil Medvedev's first-round loss against Benjamin Bonzi featured a moment that raised eyebrows at Louis Armstrong Stadium.

It took a few extra hours, but Benjamin Bonzi pulled off the upset. After nearly blowing a two-sets-to-love lead, which was highlighted by a photographer inadvertently interrupting play with Bonzi serving for the match in the third set against No. 13 seed Daniil Medvedev, the Frenchman hung on in a dramatic fifth set.

There was bedlam at the U.S. Open Sunday night, when Daniil Medvedev’s 6-3, 7-5, 6-7 (5), 0-6, 6-4 defeat to Benjamin Bonzi was delayed for six minutes after a photographer prematurely entered the court.

Daniil Medvedev voices his unhappiness and causes a lengthy delay after a cameraperson walks on the court during his match vs. Benjamin Bonzi.