Mathieu Debuchy's winner in stoppage time gave Lille a 3-2 victory over champion Marseille in the French league on Saturday and improved his team's chances of securing a Champions League spot. Marseille clinched its ninth league title in the previous round on Wednesday and tops the standings with an unbeatable 75 points, five clear of Lille. Auxerre was third with 68, followed by Lyon with 66. Elsewhere, it was: Auxerre 0, Lens 0; Valenciennes 2, Lyon 2; Montpellier 2, Lorient 1; Bordeaux 2, Sochaux 0; Rennes 2, Nice 2; Monaco 2, Nancy 1; Le Mans 1, Paris Saint-Germain 0; Saint-Etienne 0, Toulouse 1; Grenoble 2, Boulogne 0. Mamadou Niang curled home a shot from the edge of the box to become the top striker in the league with 17 goals and put Marseille ahead after six minutes. But Marseille was reduced to 10 men in the 26th when goalkeeper Steve Mandanda was sent off for tripping Ivory Coast forward Gervinho, who was clean through on goal. Yohan Cabaye sent Elinton Andrade the wrong way to notch his 13th goal this season and level for Lille. Marseille recaptured the lead on the stroke of halftime when Vitorino Hilton buried home a rebound after a header from Benoit Cheyrou had been cleared off the goal line. But Tulio de Melo headed in a cross from Ludovic Obraniak to equalize in the 80th before Debuchy nodded home a corner in the fifth minute of stoppage time. Lille earned its fifth straight win to consolidate second place. 