American Jack Sock won the Paris Masters after beating Filip Krajinovic on Sunday.
The world number 22 came from behind to win 5-7 6-4 6-1 against Serbian qualifier Krajinovic to seal a spot in the end-of-season ATP Tour Finals.
Sock is the first American to lift a singles trophy at the ATP World Tour Masters 1000 level since Andy Roddick in Miami in 2010.
“There have been a lot of firsts,” Sock said in quotes on the ATP Tour’s official website. “It started at the French Open with my first fourth round of a Slam, now I’ve won my first Masters 1000 in Paris.
“This will be my first time in the top 10 and this will be the first time making the year-end Finals. So there’s a lot going on right now emotionally and I can’t wait to enjoy it all with my team.”
The 25-year-old, who beat Great Britain's Kyle Edmund in the second round despite trailing 5-1 in the final set, was broken twice in the first set as Krajinovic went ahead.
But Sock hit back to take the second set 6-4 after breaking Krajinovic in the first and fifth games.
He then won six straight games in the final set – after Krajinovic had won the first – to take the title.