The AC Milan playmaker was the outstanding performer in last season's Champions League, inspiring the Rossoneri to the title with a tournament-best 10 goals.

Even though Milan have made it clear they have no intention of parting with their prize asset, Calderon is hopeful the Brazil star will join the recently-crowned Spanish champions for next season.

He told newspaper AS: "We all know that Kaka will have to force his exit from Milan and I continue to believe that he will try."

Calderon also announced on Tuesday that Madrid have agreed a deal with Germany defender Christoph Metzelder, whose contract at Borussia Dortmund is due to expire at the end of the month.

"We've been working on new signings for the last three months. Metzelder is signed up and there are three more who are almost done," Calderon added.

Brazil winger Robinho, meanwhile, has reiterated his desire to line up alongside Kaka at the Bernabeu.

Robinho, currently with the national side preparing for the Copa America which begins next week, has made little secret of his wish to play alongside the 25-year-old in domestic as well as international colours.

And now, with Kaka recently labelled by Pele as the best in the world, Robinho has repeated his call to the Champions League winner to join him in the Spanish capital.

He said: "To play alongside a star like Kaka would be wonderful.

"We get on with each other very well, both on and off the pitch and having another Brazilian in the team would be great.

"Kaka is a great player. I hope he can win the (FIFA World Player of the Year) award and also play with us at Real Madrid."