Nice's title hopes suffered another blow with more dropped points in a 2-2 draw at Rennes.
Yassine Benzia scored twice against his old club as Lille ran out 2-1 winners at Lyon in Ligue 1 on Saturday.
Gabriel Boschilia and Valere Germain both struck twice as Monaco beat Lorient 4-0 to move two points clear at the top of Ligue 1.
Lorient moved off the bottom of the table after a 3-1 win over Guingamp, while there were wins for Nancy and Nates.
Ligue 1 leaders Nice crashed out in the last 64 of the French Cup on Sunday after a 2-1 defeat at struggling Lorient.
PSG slumped to their fourth Ligue 1 defeat of the season as they were beaten 2-1 at Guingamp while Bastia continued their resurgence.