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.
Aldo Kalulu scored his first ever Ligue 1 goal as Lyon secured their first home win of the season with a 2-0 victory over 10-man Bastia.
Paris St Germain preserved their unbeaten start to the season thanks to Edinson Cavani's late equaliser at Reims.
Former Newcastle United winger Hatem Ben Arfa has lost his case against FIFA at the Court of Arbitration for Sport.
Montpellier climbed off the bottom of Ligue 1 but have still not scored a goal following a 0-0 draw at Troyes, while Reims went top with a 4-1 win over Lorient.