ATP Finals 2023: Novak Djokovic Loses First Match Since Wimbledon Final, Jannik Sinner Records First Win Over World No 1

It was the 22-year-old Jannik Sinner’s first win in their four head-to-head meetings. It also ended Novak Djokovic's 19-match winning streak that stretched back to his five-set loss to Carlos Alcaraz in the Wimbledon final.