Lille boosted their title hopes with victory over Caen as third-placed Rennes were held by Auxerre.
Rudi Garcia this week signed a new deal to remain Lille manager until 2014 and he celebrated with a 3-1 win against Caen which stretches their lead at the top of the table to seven points.
Aurelien Chedjou opened the scoring for Lille after 29 minutes and Eden Hazard doubled their advantage just after the hour mark.
Moussa Sow added a third, before Youssef El Arabi provided Caen with a late consolation.
With Marseille not in action until Sunday, Rennes had the opportunity to climb second by beating struggling Auxerre.
However, the game at Route de Lorient finished in a goalless stalemate, leaving Rennes third and boosting Auxerre's survival hopes.
High-flying Paris St Germain's clash with Lorient also ended 0-0, as did the match between mid-table duo Nancy and Bordeaux.
Bottom club Arles look set to be relegated within the next couple of weeks after losing 2-0 at home to Monaco.
Arles, who have claimed just one league victory all season, made the worst possible start against their fellow strugglers when Gregory Lorenzi was sent off inside the opening 60 seconds.
Benjamin Moukandjo and Park Chu-young then scored to seal Monaco's success and leave Arles a staggering 21 points from safety.
Sochaux left it late to snatch a 2-1 victory at home to Brest in a clash between two sides that have been out of form in recent weeks.
Ryad Boudebouz's early penalty for Sochaux was cancelled out by a Bruno Grougi spot-kick for Brest, but Ideye Brown grabbed a 90th minute winner.
Souleymane Camara scored the only goal of the game in the day's late kick-off as Montpellier ended a run of four games without a win by beating Toulouse 1-0.