Dimitar Berbatov scored the only goal of the game as AS Monaco won their fourth match in a row at Lille.
Guingamp moved up to 12th in the Ligue 1 standings courtesy of a 3-2 triumph over Lorient at the Stade du Roudourou.
Marseille cut the gap to Ligue 1 leaders Lyon to a single point thanks to their late 2-1 win over Guingamp on Sunday.
Dimitar Berbatov scored as Monaco eased into the Coupe de la Ligue semi-finals with a 2-0 win over 10-man Guingamp.
Paris Saint-Germain blew a two-goal lead to lose 4-2 at relegation-threatened Bastia.
Guingamp extended their unbeaten run to five games with a 2-0 victory over Lens on Saturday.
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