Lens remain 11 points behind Ligue 1 leaders Lyon after a comfortable 3-1 home win over Sochaux.
Vitorino Hilton (28) gave the Northern French club the lead before Seydou Keita (30) doubled the home side's advantage two minutes later.
Aruna Dindane (58) made it three for Francis Gillot's side before Alain Perrin's Sochaux scored a late consolation through Dusko Tosic.
In the late Sunday kick-off, Marseille missed the chance to move into third after a 1-0 defeat at Bordeaux.
Julien Faubert (75) struck the winner for Les Girondins, as they moved up to seventh in the table as a result.