Between 2013-16, PSG were solid quarterfinalists - not a bad start when you consider that their 2012-13 foray into Europe was their first at the top table for almost 10 years - but since their elimination to the pre-Pep Guardiola-era Manchester City, Les Parisiens have been taking steps backwards on the pitch, despite creating the illusion that they are moving forward off it.
Mbappe, who scored in PSG's Saturday stroll against the league's bottom side, has come out in support of Emery and reminded fans that when they lose, the players are just as responsible as the manager.
PSG's inability to translate their domestic dominance into European success has only increased pressure on under-fire head coach Unai Emery.
"After this elimination, criticism is to be expected", Emery said at a news conference on Friday.
"I think of the collective, the club".
"The most important is the internal analysis, what needs to be done to change and progress. I am not anxious about my personal future, I am anxious about the club, the team, how to find the needed performance and how to improve". We still have other objectives, which we need to prepare well for. "The people who are in this project can change, but the project itself is very solid". "The player explained it and I believe what he said".
The project is that of PSG, I believe in this project.
Emery also responded to criticism from Julian Draxler, the Germany global having indicated the PSG coach was too cautious against Madrid.
"He did not want to say things like that".
The man from Murphy was perhaps a little naive during the Juve loss at Wembley, but has shown enough against the likes of Real (who were pushed into second in Group H by Pochettino's side) and Borussia Dortmund (who dropped into the Europa League) to confirm his status as one of the rising stars of the coaching world.
Emery added: "All players wearing the PSG jersey have a responsibility".