Paris St-Germain dropped points for the second game in a row as Uruguay striker Edinson Cavani's second-half penalty rescued a draw at Strasbourg.
The reigning champions won their first 14 games, but have now drawn twice in four days - although they are still 14 points clear of Lille.
Kenny Lala gave Strasbourg the lead with a first-half penalty after a Thilo Kehrer handball.
But Cavani equalised after half-time substitute Kylian Mbappe was fouled.
Neymar missed the game with a groin injury he suffered against Bordeaux on Sunday.