Stefanos Tsitsipas Won ATP Finals Title against Dominic Theim.  Tsitsipas was trailing earlier in the match on Sunday, but coming back strongly, the 21-year-old Greek player won the final 6-7 (6/8), 6-2, 7-6 (7/4). With this, he became the youngest player to win the title after 2011.

Tsitsipas, who won the third title this season, made into the finals by defeating legendary player Roger Federer in the semi-finals. On the other hand, the Theim defeated defending champion Alexander Zverev to ensure his place in the final.

Tsitsipas was playing in this tournament for the first time. Theim was playing the ATP Finals for the fourth time, but had won only three matches on the last three occasions. Theim had never progressed beyond the group stage before but he performed brilliantly this time. On the other hand, Tsitsipas, 17 years younger than Federer, pitted the 38-year-old veteran's hopes of becoming the champion for the seventh time.