Man Utd and PSG mock Barcelona and Real Sociedad

Paris Saint-Germain and Manchester United celebrated their wins against win over Barcelona in the Champions League and Real Sociedad in Europa League. 

PSG cruised to a 4-1 win over the Catalans on Tuesday night as Kylian Mbappe nets three times. 

"Who's this guy?" PSG wrote with an image of Mbappe attached.

"Leo's joy," they also posted, with Leandro Paredes in shot, possibly in a sly dig at Leo Messi with whom the Argentine had an altercation during the game.

Manchester United thrashed Real Sociedad 4-0 away from home, as Bruno Fernandes got a brace. 

"A Real beating," the Red Devils wrote.