Real Madrid captain Raul can't see Barcelona star Lionel Messi making the move to the Santiago Bernabeu.
In a Q&A with the inmates of Navalcarnero prison, Raul said: "I see it very difficult for him to play here. He is a player regarded as the most devastating in the world.
"He is a tough rival, but we must be happy to leave such players alone."
Raul also remarked that he would consider coaching after retirement.