Marseille striker Andre-Pierre Gignac's brace in 3-0 win over Rennes lifts them to joint top in Ligue 1.
Metz's dominant display at home to Bastia was rewarded with a 3-1 Ligue 1 win on Saturday night.
A dreadful error from Metz defender Guido Milan deep into stoppage time gifted Nice a 1-0 victory on Saturday.
Former Chelsea winger Florent Malouda has joined Metz on a one-year deal with the option to extend by a further year.
Zlatan Ibrahimovic scored a hat-trick in Paris Saint-Germain's 5-0 win over Saint-Etienne, while Lyon were beaten again.
Metz scored twice in the last 10 minutes to beat Lyon 2-1 on Sunday.
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