ATP Finals: Jannik Sinner defeats Novak Djokovic as Stefanos Tsitsipas withdraws through injury
Jannik Sinner claimed his first ever victory against Novak Djokovic as the Italian beat the world number one at the ATP Finals in Turin. Sinner, 22, won a third-set tie-break to secure the group match 7-5 6-7 (5-7) 7-6 (7-2)...
