Jannik Sinner hit the accelerator at the end of each set as he cruised past Taylor Fritz, 6-4, 6-4, on Tuesday to close in on a semifinal spot at the ATP Finals in Turin.

Top-ranked Jannik Sinner beat Taylor Fritz 6-4, 6-4 at the ATP Finals on Tuesday in a rematch of the US Open final that the Italian also won in straight sets.

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.

A rejuvenated Daniil Medvedev defeated Alex de Minaur 6-2 6-4 in his second match at the ATP Tour Finals. Fourth seed Medvedev was irate during his opening defeat by American Taylor Fritz on Sunday but looked far more settled during Tuesday's victory.

Antonio Calanni/AP Russia's Daniil Medvedev Australia's Alex de Minaur returns the ball to Russia's Daniil Medvedev Australia's Alex de Minaur during their singles tennis match of the ATP World Tour Finals at the Inalpi Arena,

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 6-2, 6-4 victory over Alex de Minaur on Tuesday.