Brest finished third in the table last season with seven games lost, seven games draw and twenty games won, talking about Brest relegation is actually too early because the only lost two matches first and second they won the third one with 4-0 against saint Etienne although saint Etienne just came back from the relegation after been absent for two consecutive seasons, Brest winning against saint Etienne is a sign that they are ready to compete for the top three positions, regarding their match against PSG, if eventually they lost I will not mount blame on them because PSG is the strongest team in Ligue 1 who have won all their matches.
Losing two games and winning one is not a reason to conclude that Brest will be relegated. There are still many games to play and their convincing win against Saint Etienne shows that they can still come back from their drawbacks. Brest would have to step up their game if they want to make it in the UEFA Champions League, where they will be playing against top European clubs.
Considering Brest's season's performance and their recent will against Saint Etienne, we cannot conclude that PSG will have an easy win. This game will be a good test for Luis Enrique's side since they have not faced a strong team this season.