Barcelona players including Brazilian superstar Neymar, Ivan Rakitic, Alves, Suarez and others celebrated their 2-0 victory dressed as Shrek and Frankenstein's monster for this year's halloween.
The players then wandered out of the mixed soon to mingle with fans still in costume before heading back to the dressing room.
Croatia international midfielder Ivan Rakitić uploaded the photos of the players in the spooky costumes on social media.