Pierre-Emerick Aubameyang needs three more league goals to reach 250 in his career
Marseille scored two late goals to move level on points with hosts Strasbourg and go top of Ligue 1 on goal difference.
Strasbourg looked on track to move four points clear at the top until the 78th minute as Abdoul Ouattara's goal had them ahead.
But former Arsenal and Chelsea striker Pierre-Emerick Aubameyang grabbed the equaliser, and Amir Murillo completed the turnaround as the clock ticked into added time.
Aubameyang was first to the rebound following his own shot to level the score after goalkeeper Mike Penders spilled the initial shot.
Penders, on loan from Chelsea, seemed to have done better in stoppage time when he tipped substitute Robinio Vaz's header onto the crossbar, but the rebound landed with Murillo.
Marseille are now top with five teams all on 12 points, including Strasbourg who lie in fifth place.
