Toulouse's battle to beat the Ligue 1 drop was boosted as they shocked Bordeaux 2-1 to register a first victory in five games.
PSG went top of Ligue 1 for the first time this season after title-rivals Lyon lost 2-1 at home to 10-man Nice on Saturday.
Ivory Coast winger Max-Alain Gradel scored for the fourth straight match as Saint-Etienne secured a 3-2 win at struggling Metz.
Lens gave their Ligue 1 survival hopes a shot in the arm as they ended a nine-game winless run by beating Toulouse.
Michy Batshuayi scored a first-half double as Marseille thrashed Toulouse 6-1 in Ligue 1 on Friday.
Jean-Daniel Akpa-Akpro netted a late equaliser as Toulouse battled back to record a 1-1 Ligue 1 draw against St Etienne.
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