Novak Djokovic won a record seventh ATP Finals title with a dominant victory over Jannik Sinner that marked another milestone in his memorable season.
The Serb, who lost to the Italian in the group stage, avenged that with a 6-3 6-3 win in Turin, Italy.
He has set records in rankings and titles this year and played some of his best tennis against the youngsters, like Sinner, who is trying to challenge him.
Before the singles final, there was British success in the doubles when Joe Salisbury and American partner Rajeev Ram retained their title with a straight-set win over Marcel Granollers and Horacio Zeballos.
Bbc/Leo