Top-ranked Jannik Sinner has become the first player to advance to the semifinals at the ATP Finals in Turin. Sinner was assured of a spot in the last four after U.S.

Top-ranked Jannik Sinner became the first player to advance to the semifinals at the ATP Finals after US Open finalist Taylor Fritz beat Alex de Minaur.

Jannik Sinner became the first player to reach the semifinals at the ATP Finals after Taylor Fritz defeated Alex de Minaur. Sinner, who faces Daniil Medvedev next, has already secured his place in the last four.

Sinner heads into his last match in the Ilie Nastatse Group against Daniil Medvedev knowing that he is through no matter what, with a win ensuring him of top spot.

It has been just over two months since Jannik Sinner defeated Taylor Fritz in the US Open finals. Much has transpired in the tennis world since then, but Sinner remains as dominant as ever.

Taylor Fritz closed in on the last four of the ATP Finals on Thursday after coming from behind to beat Alex De Minaur 5-7, 6-4, 6-3.

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

Recap, highlights, and quotes from Taylor Fritz's win over Alex de Minaur in the Group Stage 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 6-2, 6-4 victory over Alex de Minaur on Tuesday.