Taylor Fritz benefited from a questionable serving decision by Daniil Medvedev and frustrated his opponent so much 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.

Daniil Medvedev was able to “block the noise” following a temper tantrum in his previous match and moved back into contention at the ATP Finals with a 6-

Sinner won his opening two matches and plays Daniil Medvedev later. Last year, Sinner lost the final to Novak Djokovic, who pulled out injured this year. Fritz also has two wins, while Medvedev is still in contention and could get to two wins by beating Sinner.