- World No 1 beats Dane to ensure top ranking is retained
- Jannik Sinner makes winning start against Stefanos Tsitsipas
Novak Djokovic made a winning start to the ATP Finals, beating Holger Rune 7-6 (4), 6-7 (1), 6-3 on Sunday tos ecure the year-end No. 1 ranking for a record-extending eighth time.
Djokovic needed only one match win at the ATP Finals to be sure of keeping the top spot and the 24-time Grand Slam champion did it in his opener.