Evian Thonon Gaillard 2-0 Paris St-Germain
Paris St-Germain suffered a shock first defeat of the season as lowly Evian prevented the Ligue 1 leaders from equalling a club-record unbeaten run.
The defending champions had gone 36 matches unbeaten but missed chances means they are only a point ahead of Lille.
Second-half goals from Clarck N'Sikulu and Modou Sougou gave the hosts a first top flight win over PSG.
Their record 37-game unbeaten run was set in 1993-94.
Evian stunned the visitors in the 75th minute when Sougou pulled the ball back to N'Sikulu, who steered it low into the net.
Sougou added his name to the scoresheet with the second goal in the 87th minute as PSG failed to score in a league match for the first time this season.
Lille and Monaco closed in on the leaders with victories on Tuesday.
Monaco won 3-0 at Cote d'Azur rivals Nice and Lille overcame Marseille 1-0 at home.