PARIS, Sept 20 (Reuters) - A first-half goal by Gaston Curbelo gave holders Nancy a 1-0 victory over Nice in the French League Cup first round on Wednesday.
Nancy, who beat Nice in the final last season, got the only goal of the game when Curbelo netted after 25 minutes.
Nice, bottom of Ligue 1, at one stage fielded four strikers but were unable to penetrate Nancy's defence.
Monaco, who lie fourth from bottom in the Ligue 1, eventually went through on penalties at promoted Valenciennes after a goalless draw.
Elsewhere, two goals by Portugal striker helped Paris St Germain beat Lorient with a 3-1 come-from-behind victory while AJ Auxerre eliminated Ligue 2 Racing Strasbourg, coached by former France striker Jean-Pierre Papin, 2-0.
RC Lens, who have won their last two league matches 3-0, went through with a 4-1 victory at Ligue 2 Creteil after being 1-0 down at halftime.
St Etienne knocked out third division Sete with the same scoreline.
On Tuesday, Toulouse knocked out Nantes 2-0 while Lille needed a Mamatou Coulibaly own goal to see off Ligue 2 side Istres.
Olympique Lyon and Girondins Bordeaux, having directly qualified for the Champions League last season, were granted a bye.