Overview
- Lorenzo Musetti makes his ATP Finals debut against Taylor Fritz at 14:00 in Turin after being elevated from first alternate following Djokovic’s pullout.
- Defending champion Jannik Sinner opens against Félix Auger-Aliassime at 20:30 as he chases the year‑end No. 1 in a duel with Carlos Alcaraz.
- Italy’s Simone Bolelli and Andrea Vavassori began doubles with a 7-5, 6-3 win over top seeds Julian Cash and Lloyd Glasspool.
- Coach Darren Cahill confirms he will remain with Sinner next season and says the team is managing his workload to peak around ages 28–32.
- Italian media report Djokovic supplied an ATP medical certificate noting fragile health in Athens, though retirement speculation remains unconfirmed.