Real Madrid president Florentino Perez is upset seeing skipper Iker Casillas jeered by his own fans.
Casillas has struggled to win back the support of fans this season.
Perez said: "The only thing I can say about Casillas is that he deserves our respect."
"He's been at the club for fifteen years and sometimes he doesn't deserve the boos that he gets, I don't like it and it doesn't make us stronger. Let's let him work without pressure and let's let the coach do what he needs to do."