Unai Emery played down speculation about Thiago Silva's future at PSG, saying his captain is focused on Marseille.
Marseille and PSG meet on Sunday in France's leading club fixture. It will be Alphonse Areola's first taste of the rivalry he grew up enthralled by.
Nancy moved off the bottom of the Ligue 1 table with a 1-1 draw at Bordeaux.
High-flying Toulouse were held to a goalless draw at Angers in their Ligue 1 clash at Stade Jean-Bouin.
Jordan Loties scored in stoppage time to give Dijon a 1-0 home win against fellow strugglers Lorient.