Real Madrid hero Roberto Carlos is backing Kaka to make a big impact with the Spanish giants.

Fenerbahce wing-back Roberto Carlos said: "I spoke with Kaka on the phone and he was calm. He is an idol in Europe and will easily adapt to Madrid. I am sure that soon he will become one of the biggest names in the club's history, just like (Zinedine) Zidane, Raul, Ronaldo and other stars.

"Kaka is a player who decides matches with his talent. I have no doubt he will have great success in Madrid."