Bastia have filed a civil case against Nantes goalkeeper Remy Riou in which they claim he made harmful and false claims.
Fabian Lemoine earned Saint-Etienne victory at Lorient in Ligue 1 on Saturday, while Nantes were held by Reims.
Floyd Ayite's second-half strike proved enough as Bastia ended a six-match winless run with a narrow 1-0 victory over Nice.
Marseille moved five points clear at the top of Ligue 1 with a 2-1 win at Caen, while Montpellier climbed to fifth.
Lorient ended a four-game Ligue 1 losing streak as a couple of second-half goals secured a 2-0 victory at Bastia.
Lille moved just a point behind Ligue 1 leaders Marseille with a 1-0 win over Bastia, while PSG drew 1-1 at Toulouse.
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