God you're more pessimistic than Morten.
Or maybe i see PSG in a regular manner be in a difficult situation every game. Especially against teams putting intensity in their game.
Navas is hailed as the hero of PSG and when your GK is your best player, it only shows that, besides his quality, the GK gets to shine because his team doesn't protect him enough. Proper should know it as de Gea was the best player of a very average MU side.
Only chance PSG has is if Neymar gets back in a WC form which is doubtful as he is lacking match fitness. The guy has merely played 10 games whole season.