Tsitsipas wins ATP Finals title

Stefanos Tsitsipas has beaten Dominic Thiem in 3 sets to win ATP Finals title.

Tsitsipas rallied to beat Thiem 6-7 (6), 6-2, 7-6 (4) on Sunday to become the youngest ATP Finals champion in 18 years and collect the biggest title of his career.

The 21-year-old Greek bounced back from dropping a tight first set in the final by racing out to a 4-0 lead in the second, and then held off his Austrian opponent's comeback in the third.

Tsitsipas couldn't capitalize on another early break and a 3-1 lead in the deciding set but won the last three points of the tiebreaker, clinching the win when Thiem sent a return wide.

He is the youngest champion at the ATP Finals since Lleyton Hewitt in 2001.

Thiem beat both six-time champion Roger Federer and five-time winner Novak Djokovic in the group stage but lost another big final after twice finishing runner-up to...