Victory at Lille would put huge pressure on Girondins Bordeaux in the title race, Olympique Marseille midfielder Karim Ziani said.
Marseille lead the standings on 64 points with six games left, with Bordeaux in second place two points behind.
"It is a turning point because Bordeaux do not play. They will be under big pressure if we win," Algerian Ziani told sports daily L'Equipe on Friday.
Olympique Marseille will be without captain Lorick Cana for their trip to Lille after the midfielder was handed a one-match suspension for trading punches with Lorient's Arnaud Le Lan on Sunday.
"After the defeat, we quickly re-focused on our goal (reaching a Champions League spot)," Fauvergue told his club's website.
"We had a video session and swept this defeat out of our minds to get into the Marseille game as quickly as possible."
Christophe Revault, 37, has lost his first-choice keeper spot at bottom club Le Havre to under-21 player Johnny Placide, sports daily L'Equipe reported on Friday.
"To me, it is a mental problem. There is no such thing as fatigue in a French Cup semi-final," he told L'Equipe before they host Lorient on Sunday.
