A brace from Kylian Mbappe and a strike from Ousmane Dembele saw Paris Saint-Germain thrash Barcelona 4-1, in the Champions League quarter-final second leg tie in Spain. It was a night to forget for Barcelona as Xavi, defender Ronald Arajuo, and even goalkeeping coach Jose Ramon de la Fuente sent off. The LaLiga giants came into the second leg holding a 3-2 advantage from their victory in Paris…