Jo-Wilfried Tsonga came back from a set down and saved a match point to defeat Czech top seed Tomas Berdych to win the ATP Tour's Marseille Open 3-6 7-6 (8-6) 6-4 on Sunday.
The French number one picked up his 10th ATP victory and second in Marseille after defeating the world number six and a player he had beaten only once in five meetings.
Tsonga paid tribute to the rousing support he received on the Mediterranean coast.
"This victory, I owe it to you," he told the fans.
Berdych took advantage of a series of unforced errors from Tsonga to break in the sixth game of the opening set before closing out the set confidently 6-4 with a forehand volley.
Tsonga dug in and saved a crucial break point with the score at 4-4 before a dramatic tie-break that saw the Frenchman fend off match point with an ace before levelling the match and forcing the decider.
It turned out to be the turning point of the final as Tsonga gained in confidence and produced a series of winners that eventually wore down Berdych and carried him to a victory 6-4 by taking his first chance at match point.