Tennis: Sinner defends ATP Finals title with a straight-sets victory over Alcaraz [SOUND]

# Tennis: World number two Jannik Sinner saw off his close rival Carlos Alcaraz to defend his ATP Finals crown in Turin. The 24-year-old Italian captured the title without dropping a set throughout the tournament, winning 7-6, 7-5 in the final. He has extended his indoor winning streak to 31 matches. Sinner, who is the ninth man to triumph at the year-end championships in consecutive years, says winning the trophy there is no better ending for him this season: