Overview
- Tournament organizers said Novak Djokovic pulled out of the ATP Finals with a shoulder injury, with Lorenzo Musetti taking his place in the Jimmy Connors group.
- Earlier the same day, Djokovic beat Musetti in Athens for his 101st career title and a record 72nd on hard courts, becoming the oldest tour-level champion since 1977.
- Carlos Alcaraz defeated Alex de Minaur 7-6 (7-5), 6-2 in his opener and will clinch the year-end No. 1 if he wins his remaining round-robin matches.
- A rankings update on Monday returned Alcaraz to world No. 1 as the season-ending event got underway in Turin.
- Alexander Zverev, back from an ankle injury, beat Ben Shelton 6-3, 7-6 (8-6) in the Bjorn Borg group on opening day.