Wales international Bales, 28, was jeered by some ofthe Bernabeu crowd in Wednesday's3-0 Champions League winover Apoel Nicosia.
"He was a very strong player for us and I hope he continues to be so," Casemirotold Marca
."We try to protect the players we have. We are always defending our own. It shows that we are a family."
He added: "I defend my team-mates as if they were my family and I am with them until the end."With the quality he has, things will be going well for him one day.
"Bale has scored only one goal in six games for Madrid this season.Manager Zinedine Zidane said: "I did not listen to the whistles, only the applause."