Former Real Madrid president Ramon Calderon has branded Jose Mourinho a whinger while talking up Pep Guardiola's abilities.
Mourinho's Real face Barcelona in the first of four El Clasico's this week.
"I think his complaints about the fixture dates were a joke. He already used that one in England, but that's just the way he is," Calderon told Sport, referring to Mourinho's complaints about the Liga calendar earlier this term.
"He does well on the pitch, but his complaints are unjustified. A great team cannot always complain against referees, bad luck or injuries.
"Guardiola on the other hand has good behaviour and attitude. He is exemplary."
