Stefanos Tsitsipas became the youngest player in 41 years to win the ATP Finals on his tournament debut after beating friend Dominic Thiem in a three-set thriller in London, Sunday.

There is something in the air in New York around the time of the US Open that can lead to opportunity. While the dominance of ...

Dominic Thiem made sure this year's ATP Finals didn't begin the same way last year's ended. Thiem outlasted Stefanos Tsitsipas in a rematch of the 2019 final, beating the defending champion 7-6 (5 ...

A year ago in London, Stefanos Tsitsipas won the title when he beat Dominic Thiem in a gem of a final, 6-7 (6), 6-2, 7-6 (4). Today, in the tournament’s first singles match, Thiem turned the tables.

Tsitsipas and Thiem both toppled every Big 3 member during the course of productive 2019 seasons. The young Greek also upended Nadal on clay in Madrid and ousted Djokovic on hard courts in Shanghai.

Thiem, 26, who edged a tight first set, fell away in the second and the start of the third before fighting back. But Tsitsipas forced a tie-break, and then won it, at a raucous O2 Arena.

Stefanos Tsitsipas confirmed his meteoric rise into the highest echelon of men's tennis by battling back to beat Austrian Dominic Thiem 6-7 (6) 6-2 7-6 (4) in a compelling title duel at the ATP ...

Dominic Thiem will meet Stefanos Tsitsipas in the final of the 2019 Nitto ATP World Tour after both players won their semi-final matches at London's O2 Arena on Saturday.