Espanyol fans ran onto the pitch of their home stadium after the Spanish championship match against Barcelona (2-4).
The reason was Xavi's team's celebration of their La Liga title. The victory in the Catalan derby allowed Barcelona to win the league gold medals ahead of schedule.
However, this celebration did not please the Espanyol fans, who ran onto the pitch after the final whistle as Xavi's side were forced to make an immediate run for the dressing room.