Late goals from Mario Lemina and Andre-Pierre Gignac ensured that Marseille kept pace with Ligue 1 leaders Lyon after they defeated visiting Guingamp 2-1 at the Stade Velodrome this evening.
The hosts should have taken the lead after 11 minutes when Romain Alessandrini dragged his shot wide without troubling Guingamp keeper Jonas Lossl.
Gignac was next to threaten for OM and he forced a brilliant stop from Lossl down low, after he connected well with a cross from Dimitri Payet.
It was Guingamp who came closest in the first half, though, as Younousse Sankhare saw his header from the six-yard box crash back off the left post.
Gignac was frustratingly wasteful in the second half, the striker dragging wide on two separate occasions without troubling Lossl in the Guingamp goal.
It appeared as though the hosts might be frustrated in their pursuit for all three points until Lemina delivered six minutes from time with a smart header into the bottom-right corner.
OM made sure of the win with one minute left to play as Gignac finally found his shooting boots to tuck into the net following a pin-point cross from Payet.
Guingamp made sure of some late drama, however, when they clawed back a goal in injury time through a Claudio Beauvue penalty, after Rod Fanni was sent off for a silly tackle on the midfielder inside the box.