Taylor Fritz, the U.S. Open finalist who lost to Sinner in New York, was also drawn in the Italian’s group alongside Australian Alex De Minaur, making his ATP Tour Finals debut; Casper Ruud and Andrey Rublev, who qualified as world No. 9 after Novak Djokovic withdrew, rounded out the second group.

Jannik Sinner and Carlos Alcaraz discuss their potentially era-defining rivalry ahead of the ATP Tour Finals in Turin.

Italy's Jannik Sinner plays a return to Australia's Christopher O'Connell during their men's singles third round match on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City,

Italian world number one Jannik Sinner eased past Daniil Medvedev 6-3 6-4 in their final group match on Thursday, leaving Taylor Fritz to seal a place in the semi-finals of the season-ending ATP Finals after the American defeated Alex de Minaur 5-7 6-4 6-3.

Jannik Sinner and Carlos Alcaraz have been placed in different groups for the ATP Finals in Turin. That means the earliest they could meet is the semifinals.

Jannik Sinner avoided his key rival Carlos Alcaraz in the ATP Finals group draw on Thursday, as the Italian aims for his first title at the season-ending event on home soil.

Still plenty to play for in group Ilie Nastase, although the scenarios where Jannik Sinner doesn’t make the semifinals or Alex de Minaur does are mostly theoretical.

Alex de Minaur has been thrashed in his first two ATP Finals matches - but there is still a slim chance he can reach the semi-finals in Turin.