Guingamp picked up their first points of the Ligue 1 season as they shocked Marseille 2-0 at the Stade du Roudourou.
There were wins for Marseille and Saint-Etienne in Ligue 1 on Sunday, while Lille were held to a goalless draw by Bordeaux.
Manchester City defender Jason Denayer could join Marseille on loan for the season.
Newcastle have signed Florian Thauvin from Marseille for around £13m, with Remy Cabella being loaned to the French club.
Olympique Marseille have appointed former Real Madrid captain Michel as the club's new coach.
Four clubs are now interested in signing Joey Barton following the breakdown of the midfielder's proposed move to West Ham.