Real Madrid coach Zinedine Zidane isn't concerned about the whistles for Cristiano Ronaldo.
Real fans are winding up Ronaldo as he struggles for goals.
Zidane said, "On one hand I do not understand it but at the same time I do.
"They whistled me as a player. The fans demand a lot of players. The Bernabéu is special and we know it. Cristiano knows it and he is used to it. The important thing is to continue with our work and we know the importance of our fans."