The 33-year-old told Marca: "Every club wants to have the best players in the world, and it is normal that they all want someone as good as Cristiano, because he is a decisive player who will help them win titles.
"Manchester United won the Champions League with him, which is the best example. He would be a great signing for the club and for the fans, who always want to see the best.
"The truth is that every player like that wants to play in the Bernabeu some time, to feel the support of the Madrid fans. Real Madrid and the Bernabeu are a unique experience in football.