Marseille dug deep to come from behind and win 2-1 at Rennes, extending their winning run to seven games in all competitions and returning to within two points of the UEFA Champions League positions in Ligue 1.
Tongo Doumbia's long-range goal had given Rennes an early lead, but Didier Deschamps' side turned the game around through an Onyekachi Apam own goal and a 77th-minute strike by Benoit Cheyrou to climb above Rennes into fifth place.
Lucho Gonzalez failed to distinguish himself in the 14th minute when he inadvertently set up Rennes' opening goal. The Argentinian was dispossessed in midfield and when the ball broke to Doumbia, the 22-year-old holding midfielder lashed home from 25 yards to claim his first league goal for the club.
Half-time was beckoning when Marseille drew level in fortuitous circumstances, with Loic Remy's left-wing cross deflected into his own net by Apam.
Rennes introduced Mevlut Erding from the bench for his debut following his move from Paris Saint-Germain but it was OM who secured all three points thanks to a blunder from Rennes' 19-year-old goalkeeper Abdoulaye Diallo.
Cheyrou's rising shot from the edge of the box contained power, but Diallo got a firm hand to the ball, only for it to loop behind him and bounce into the net.