Nice came from behind to beat Montpellier 2-1 on Friday and move level on points with Ligue 1 leaders Monaco.
Nice's title hopes suffered another blow with more dropped points in a 2-2 draw at Rennes.
Dimitri Payet and Memphis Depay got their first goals for their new Ligue 1 clubs as both Marseille and Lyon picked up wins on Wednesday.
St Etienne moved to within a point of Ligue 1's top four with a 2-0 home victory over nine-man Lyon, as Toulouse and Nancy also won.
Edinson Cavani scored both goals as Paris St-Germain beat Nantes 2-0 on Saturday to move within a point of Ligue 1 leaders Nice.
Emiliano Sala scored the only goal of the game as Nantes beat Caen to record a fourth straight Ligue 1 victory.