Stefanos Tsitsipas, who was the runner at this year's Dubai Duty Free Tennis Championship, has won the ATP Finals title.
He came from a set down to beat Dominic Thiem on Sunday night at the O2 Arena in London.
The 21-year-old from Greece took the match in a pulsating final-set tie-break.
Tsitsipas becomes the youngest winner of the season-ending ATP Finals in 18 years.
Curator 'shocked' by Melbourne pitch performance in Ashes
The Melbourne Cricket Ground (MCG) curator who prepared the widely criticised pitch for the fourth Ashes test said he was in a "state of shock" as wickets tumbled in the two-day match.
MI Emirates seal Qualifier 1 berth after eight-wicket win over Dubai Capitals
MI Emirates confirmed their place in the top two after a comprehensive eight-wicket win over the Dubai Capitals at the Zayed Cricket Stadium on Saturday.
Nigeria let three goal lead slip before edging past Tunisia
Nigeria put on an impressive display of attacking prowess but had to hang on in the end for a narrow 3-2 win over Tunisia at the Africa Cup of Nations on Saturday, becoming the second team to make sure of a place in the last 16.
England survive mayhem to claim Melbourne Ashes win
England celebrated their first test win in Australia in 15 years at a sunbathed Melbourne Cricket Ground on Saturday as their batters chased down 175 runs to secure a four-wicket victory within two frenzied days of the fourth Ashes test.
Morocco held by Mali to end record winning run
Hosts Morocco were held to a 1-1 draw by Mali at the Africa Cup of Nations on Friday, ending their world record run of wins and leaving them still to make sure of progress to the next stage.
