This Sunday at 9:00 p.m., Athletic Bilbao will host Barcelona in San Mamés amidst the ongoing "Negreira Case" controversy. A part of the rojiblanca supporters used their social networks to promote a protest against the Catalan club and everything related to the former vice president of the CTA ahead of that game.

The San Mamés fans want to express their rejection by launching a number of tickets bearing Barcelona's logo colors of blue and scarlet with the motto 'mafia' onto the field during the 30th minute of the game.