Jannik Sinner overcomes Carlos Alcaraz in two tight sets to retain his ATP Finals crown

By Patrick Sung, CNN (CNN) — Four-time grand slam winner Jannik Sinner capped off a memorable 2025 season with a 7-6(4), 7-5 victory over rival Carlos Alcaraz to retain his ATP Finals crown. In front of a raucous, partisan crowd in Turin, Italy, Sinner and Alcaraz played some stellar tennis, demonstrating their hold on the