Ghana winger Andre Ayew scored the winner as defending champion Marseille beat bitter rival Paris Saint-Germain 2-1 at home on Sunday to stay within four points of French leader Lille.
Gabriel Heinze put Marseille ahead in the 17th minute with a free kick, but midfielder Clement Chantome equalized 10 minutes later, before the Ghana winger Ayew headed the home side back in front at Stade Velodrome in the 35th.
Marseille is in second place, one point ahead of Rennes and two ahead of fourth-place Lyon.
PSG is fifth.
"We really wanted to win in front of our own fans after what happened in the first game (where PSG won)," Ayew said.
"From a personal point of view, it's very satisfying. For a player who was formed here to score the winning goal against PSG is a dream come true."
Marseille midfielder Benoit Cheyrou thinks Marseille can catch Lille with 10 rounds left.
Coupet was powerless to stop Marseille's second goal, again standing on the spot, when Ayew beat him with a downward header from Andre-Pierre Gignac's whipped cross from the right.
Watch video of Andre Ayew's goal below
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