The former Lille man may make his La Liga debut when Barca meet Real Betis on Saturday .
Man has already turned out for man 's new side , helping Barca to an emphatic two - legged Supercopa Espana success over Sevilla .
The former Lille man may make his La Liga debut when Barca meet Real Betis on Saturday but he has already turned out for his new side , helping them to an emphatic two - legged Supercopa Espana success over Sevilla .