Marseille missed the chance to move into third place in Ligue 1 after being held to a draw at Monaco.
l'OM could not fine a way through at the Stade Louis II as the match ended goalless.
Montpellier are up to sixth following a 2-1 win at Nancy.
Youssouf Hadji gave Nancy the lead after just two minutes in, but Montpellier bounced back with Souleymane Camara and Garry Bocaly sealing the victory.
Bordeaux moved into eighth after a 2-0 win over fourth from bottom Nice.
A goal in each half from Ludovic Sane and Anthony Modeste sealed the win.