Only two players have won the award since 2004.
Daily round-up from the O2 Arena in London for the final day of the Nitto ATP Finals
The Greek is the first ever player from his country to win the season-ending tournament.
Could next year see a huge change in men's tennis?
The 26-year-old has achieved a duo of personal and national records at the London event.
Daily round-up for Day 5 at the Nitto ATP Finals at the O2 Arena in London
The world No.5 explains why the key to his latest match was keeping it short, but not necessarily winning.
The 23-year-old ends his breakthrough season on the ATP Tour with another milestone in his career.
Daily round-up by Ubaldo Scanagatta from the O2 Arena in London
For the second time in his career, Thiem has battled back from a set down to upset the former world No.1.
Novak Djokovic plays Dominic Thiem for a commanding lead in the Bjorn Born Group, while Roger Federer faces Matteo Berrettini to stay out of last place.
A video recap from the O2 Arena in London. Djokovic loses just three games to Berrettini but it's Thiem's straight-set win to Federer that makes the...
The Austrian has continued his unbeaten record against the world No.3 this year.
The Austrian speaks out about his 2019 performances and outlines what areas of his game he would like to improve.
Before this year the Austrian had not won a title on home soil. Now he has two.
Dominic Thiem is into his first Vienna Final after edging out Matteo Berrettini.
Dominic Thiem claimed his 15th career ATP title with a three set win over Stefanos Tsitsipas in Beijing.
The top seed experienced a much harder time in Beijing than the scoreline suggests.
The renowned Austrian coach has branded Alexander Zverev a 'total failure.'
The world No.4 has suffered his earliest ever loss at Flushing Meadows.