PARIS (AP) -- Paris Saint-Germain lost to to Nancy 2-1 in a lackluster performance that cast doubt on Saturday on its ability to outsprint Montpellier in the French league title race.
Nancy winger Yohan Mollo scored the winner with a low strike in the 89th minute.
PSG remained in second place, level on points with Montpellier.
Nancy midfielder Bakaye Traore collected a pass from Mollo to slip the ball past PSG goalkeeper Salvatore Sirigu in the 18th.
Nancy centerback Andre Luiz nearly added a second goal but his long-range effort hit the bar in the 20th.
PSG came back with a different mindset after the break as Mohamed Sissoko equalized in the 50th by heading home a cross from leftback Sylvain Armand.