On-loan Metz striker Modibo Maiga has been backed by his coach and team-mates after he was booed by his own fans.
Fabian Lemoine earned Saint-Etienne victory at Lorient in Ligue 1 on Saturday, while Nantes were held by Reims.
Metz were left frustrated as Rennes put a second dint in their home record this season.
Marseille moved five points clear at the top of Ligue 1 with a 2-1 win at Caen, while Montpellier climbed to fifth.
Evian moved out of the danger zone as they claimed their third straight win with a comfortable 3-0 victory over Metz
Metz moved up to fifth in the Ligue 1 standings with a 3-0 victory over nine-man Reims.
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