Nuno Mendes celebrates after a goalkeeping mistake allowed PSG to snatch a late winner against Girona.  — AFPPARIS: Paris Saint-Germain were grateful to a last-minute howler from goalkeeper Paulo Gazzaniga as they snatched a 1-0 win over European debutants Girona in their opening game of the new-look Champions League on Wednesday.PSG had over 60 percent possession and 24 attempts on goal but looked set to be left frustrated by their opponents at the Parc des Princes until a low Nuno Mendes...