Paris: Senegalese midfielder Guirane Ndaw scored the only goal to guide St Etienne into the French League Cup quarter-finals with a 1-0 home win over Girondins Bordeaux on Tuesday.
Elsewhere, Valenciennes and Montpellier ended Ligue 2 participation by beating Boulogne 4-0 and AC Ajaccio 2-0 respectively.
Monaco, in Ligue 1`s relegation zone, had something to cheer as they defeated Lorient 5-3 on penalties after the game ended 1-1 following extra-time.
St Etienne, without in-form striker Dimitri Payet through suspension, took only 11 minutes to break through.
Ndaw collected an Emmanuel Riviere cross from the right and curled a fine shot into the top corner.
Bordeaux, who lacked power in midfield in the absence of banned captain Alou Diarra, twice came close to a late equaliser when goalkeeper Jeremie Janot saved well from Jaroslav Plasil and Jussie.
On Wednesday, holders Olympique Marseille visit third division En Avant Guingamp while Olympique Lyon host Paris St Germain.
The draw for the quarter-finals will be made after Wednesday`s games.