ATP Finals: Stefanos Tsitsipas beats Dominic Thiem to win ATP Finals title
Stefanos Tsitsipas fights back from a set down to beat Dominic Thiem in a final-set tie-break to become the youngest winner of the ATP Finals in 18 years.
Stefanos Tsitsipas fights back from a set down to beat Dominic Thiem in a final-set tie-break to become the youngest winner of the ATP Finals in 18 years.