Brest slipped nearer to Ligue 2 after a 2-0 hom defeat against Rennes on Saturday.
Marseille kept the Ligue 1 title race just about alive as Mathieu Valbuena's goal earned them a 1-0 victory at Lorient.
St Etienne will have designs on making it a triple celebration when they visit Lyon in Ligue 1 this weekend.
Marseille kept alive their slim hopes of winning the Ligue 1 title with an uninspiring 1-0 win over struggling Brest.
Paris St Germain manager Carlo Ancelotti will be expecting a response from his side when they resume Ligue 1 duty.
Paris Saint-Germain laboured to a 1-0 victory over rock-bottom Troyes to move a step closer to the Ligue 1 title.
Goals by Nicolas Fauvergue and Diego earned Reims three points which leaves Brest deeper in relegation trouble.
Carlo Ancelotti wants Paris Saint-Germain to focus on winning a domestic double following their Champions League exit.
Relegation-threatened Brest slumped to a fourth successive defeat as Florian Thauvin scoring twice in Bastia's 4-0 victory.
Paris St Germain warmed up for Wednesday's Champions League second leg against Barcelona with a 2-0 victory in Rennes.
Rennes midfielder Alou Diarra has targeted a return to winning ways against Ligue 1 leaders Paris Saint-Germain.
Brest have sacked coach Landry Chauvin after the club slipped into the Ligue 1 relegation places.
Marseille moved up to second place in Ligue 1 as they beat Nice 1-0 and Lyon were beaten by Sochaux.
Lille maintained their push for a Champions League spot after beating struggling Brest 2-1 at the Stade Francis-Le Ble.
Marseille president Vincent Labrune reacted with fury after his club's supporters were banned from travelling to Nice.
Lorient answered coach Christian Gourcuff's complaints about conceding late goals by thrashing Brest 4-0.
Lyon's Ligue 1 title hopes took a hammer blow in a 4-1 defeat to Bastia, while Lille lost 2-1 to Evian on Saturday.
The top three in Ligue 1 are all in action on different days this weekend meaning leaders PSG could come under pressure.
Zlatan Ibrahimovic scored twice as Paris Saint-Germain saw off Nancy 2-1 in Ligue 1, while Lille beat Valenciennes 3-1.
Brest are still looking over their shoulder at the Ligue 1 relegation zone after losing 1-0 at home to Toulouse.