Marcelo believes the only reason supporters jeer footballers is because the player needs to improve something in their game, with team-mate Karim Benzema getting whistled in Real Madrid's 3-0 win over Las Palmas.
Madrid bounced back from their defeats to Girona and Tottenham with a straightforward victory on Sunday, but Benzema and Cristiano Ronaldo endured a frustrating time in front of goal.
Benzema missed a couple of particularly presentable chances and found himself the target of whistles from some sections of the Santiago Bernabeu crowd, with the French striker scoring just two goals in 12 games across all competitions so far this term.