I am sure Enrique has measured the strength of his opponent's team, he will anticipate every possibility that could happen. especially when PSG is attacking, there will be a lot of open space in the Paris Saint-Germain area. however, Enrique will not let Brest have many opportunities, by giving tight pressing. plus, PSG will dominate possession of the ball more. inevitably, Brest will do long balls. this is just my speculation and scenario, besides we don't know for sure the line-up of both teams during the match later. so far PSG and Brest have applied the same pattern, namely 4-3-3. it could be, Brest will choose a different pattern so that his team does not concede many goals. related to the players, in order for their performance to be more solid, it seems that Enrique will continue to play his main players as starters. however, it is very likely that they will not be played fully. talking about the match after this, PSG will host Girona at their home, I will not speculate for the match between these two teams to compete in the Champions League. even so, PSG is more favored than one of the representatives from the Spanish League.
Conclusion is very simple, PSG will not be defeated by Brest. While Brest is currently in very poor form and Enrique opportunity to provide the right strategy to be able to get a large score.
Maybe Brest could hold a draw, but the chances are very small and in terms of prediction it seems like Brest will not be able to break through PSG defense, unless luck comes.
Odds PSG @1.3, draw @6.20 and Brest @9.40. From these odds it is clear who will win and for me the odds for PSG are too small or you can choose another option.