Jeremy Chardy found a return to the green grass of home provided winning dividends as he beat Marcel Granollers in three topsy-turvy sets at the Open Sud de France.
Chardy has never played in this tournament before in his career, but home comforts helped him beat the seventh seed 6-0 3-6 6-3 in 98 minutes.
2002 champion Paul Henri-Mathieu could await Chardy in round two in a tournament that has seen a Frenchman in the final on each of the last 11 events.
Granollers' compatriot Guillermo Garcia-Lopez compounded a miserable day for the Spaniards in action as he lost in straight sets to Dustin Brown, who has top seed Marin Cilic up next.
In the Sofia Open, Radu Albot beat wildcard Alexander Lazarov 7-6 (7-0) 6-2 to book a meeting in the second round with second seed David Goffin.