Real Madrid fans turned on president Florentino Perez during defeat to Barcelona.
The disaffection with the team's performance began in the first half, and with the score at 0-2 as the players headed down the tunnel, whistles sounded out around the ground, with some even directing their anger at President Florentino in the Director's Box, says AS.
Shouts of 'Florentino Resignation' accompanied the 'white hankie' treatment, a gesture used to express discontent and anger.
The protests grew even stronger in the second half as the Madrid fans watched as Luis Enrique's side dominated the match, running out 0-4 winners.