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.

Carlos Alcaraz struggled with a stomach issue and looked far from the player who won two Grand Slams this year while losing to Casper Ruud 6-1, 7-5 at the ATP Finals on Monday.

Djokovic won the 2023 ATP Tour Finals in Turin, beating Sinner 6-3, 6-3 in the final to avenge a round-robin defeat to the Italian. The victory crowned a superb season for Djokovic, who won three of the four Grand Slams alongside the Tour Finals. This year, he misses the event without an ATP Tour title to his name.

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.