Moussa Sow and Mathieu Valbuena traded braces 2 on Sunday at Stadium Lille Metropole in France's Ligue 1.
Lille and Marseille finish first and second, respectively, in the standings in 2010-11, but met in the fourth week of the new campaign with just one combined win this season.
Sow opened the scoring for Lille after 15 minutes but Valbuena scored twice in a six-minute stretch early in the second half to give Marseille the lead.
Chedjou scored in the 66th to pull Lille even and, after Eden Hazard was taken down in the area, Sow made no mistake from the spot to complete his brace, and handed the home side the victory.
Lille earned its second win of the new season, while Marseille lost its first but remained winless as its other three results are draws.
PSG 3, Toulouse 1
Paris, France - Mevlut Erding and Jeremy Menez scored in stoppage time and PSG rallied from a first-half deficit to down Toulouse, 3-1, on Sunday at Stadium Municipal in France's Ligue 1.
Etienne Capoue scored late in the opening half for Toulouse, but Kevin Gameiro tied the match 11 minutes after half and Erding and Menez scored in the final minutes to seal PSG's second straight win.
Toulouse lost for the first time this season through four matches.
Rennes 3, Caen 2
Rennes, France - Abdoulrazak Boukari, Jires Ekoko and Abdou Kader Mangane all scored in the opening half and Rennes downed Caen, 3-2, on Sunday in France's Ligue 1.
Boukari opened the scoring in the fifth minute, Ekoko added a goal in the 41st and Mangane capped the first-half scoring in the 45th.
M'baye Niang missed a penalty kick in the first half, but Thomas Heurtaux and Frederic Bulot scored after the break as Caen pulled within a goal of a draw.
Sochaux 2, St. Etienne 1
Sochaux, France - Ryad Boudebouz scored twice in the first half and Sochaux edged St. Etienne, 2-1, on Sunday at Stade Bonal in France's Ligue 1.
Boudebouz opened the scoring after six minutes, but Pierre-Emerick Aubameyang answered 10 minutes before half for St. Etienne. Boudebouz completed his brace from the penalty spot in the 42nd, and the scoreline held.
Sochaux won its second of the season. St. Etienne lost for the first time in four matches.