Barcelona slipped to a 2-1 defeat to Real Sociedad on Saturday, just the fourth time they have lost all season in La Liga.
The team have been partying hard all week, and it really showed, as La Real struck early and never really looked back against the hungover hosts.
The visitors could really have had more goals, but Marc-Andre ter Stegen impressed again, while Barca did manage to get one back late on through Robert Lewandowski.
Barcelona’s defeat means little in the grand scheme of things, but Xavi won’t want his team to fizzle out entirely in their last few games.