Alexandre Lacazette scored his first league goal from open play since April as Lyon beat Reims 1-0 on Saturday.
Hatem Ben Arfa scored twice, including a superb solo effort, as 10-man Nice ended St Etienne's five-match winning run.
Paris St Germain preserved their unbeaten start to the season thanks to Edinson Cavani's late equaliser at Reims.
Guingamp picked up their first points of the Ligue 1 season as they shocked Marseille 2-0 at the Stade du Roudourou.
There was defeat in Ligue 1 for Lyon, while Monaco came from behind to secure a 1-1 draw with Toulouse.
Monaco secured a comeback victory in their Ligue 1 opener, but there was defeat for Marseille before manager Marcelo Bielsa resigned.