Jannik Sinner and Carlos Alcaraz are poised to add another entry into their rapidly developing rivalry when the ATP Finals open on Sunday without any of the Big Three for the first time in 23 years.The top-ranked Sinner and No.

Djokovic has won the ATP Finals, which is the end of year tournament somewhat seen as a fifth major, a record seven times. He won the title last year, beating current World No. 1 Jannik Sinner.

The seven-time ATP Finals champion Novak Djokovic will not compete in Turin next week, skipping the premium ATP event. Unlike the veteran, last year's finalist Jannik Sinner is eager to embrace battles against the world's best players,