SHOCKING NEWS: Athletic Bilbao destroyed Barcelona 4-0 in Spanish Super Cup

Barcelona were hugely humiliated by northern Spanish side Athletic Bilbao in the first leg of the Spanish Super Cup at the San Mames Stadium on Friday night

Mikel San Jose netted the opener in the 13th min with an audacious shot from centre half after a tricky clearance from Barca goalie Ter Stergen saw him way out of position

The Los Leones took advantage of Luis Enrique poor central defense selection as they pressure Barca consistently to gain a well deserved win.

Turned out that pairing Thomas Vermaelen with Marc Batra, pushing Javier Mascherano to defensive midfield in a game such as this wasn't the best tactics for the Treble Boss winner as there was series of defensive error from the duo.

But it was Bilboa's striker Aritz Aduriz who turned out hero of the day scoring a hat-trick in the 2nd half against the UEFA Super Cup winners.

The 34-year-old scored the 4th goal from the spot after a foul from Daniel Alves.

Barcelona seem to have a high very mountain to climb going into the 2nd leg tie at the Camp Nou on Monday.