Jannik Sinner and Carlos Alcaraz are poised to add another entry into their rapidly developing rivalry when the ATP Finals open Sunday without any members of the Big Three for the first time in nearly a quarter century.

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,

Novak Djokovic won nine majors with Goran Ivanisevic as his coach, and the Croatian is adamant that the Serb is still the best player in the world even at the age of 37