U.S. Open finalist Taylor Fritz frustrated Daniil Medvedev to the point that that the Russian broke his racket and was docked a point in a 6-4, 6-3 victory for the American in the opening match of the ATP Finals.

American Taylor Fritz won his first match in the group stage of the ATP Finals when he beat Daniil Medvedev 6-4 6-3 on Sunday after the Russian lost his cool and risked getting defaulted by his bizarre antics.

Over his last 10 tournaments, Medvedev has won 79.8% of his service games and 28.8% of his return games. de Minaur has won 78.6% of his service games over his last 10 tournaments, and 37.0% of his return games.