Madrid's long-time president said the club had not received any transfer offers for Ronaldo.
Reigning Ballon d'Or and Best FIFA Men's Player award victor Ronaldo has been linked with a return to Manchester United having been "outraged" by what he feels is unfair treatment by Spanish tax authorities, making him determined to leave the country.
Former Monaco forward David Trezeguet wants to see Kylian Mbappe further his experience before making a big-money move.
Perez's radio interview came hours after the 70-year-old businessman was reelected to a fifth four-year term as Madrid's president. "I found out about all this from a newspaper", Perez said.
Football Soccer - Portugal training session - 2017 Confederations Cup - Oeiras, Portugal - 14/06/17 - Portugal's national soccer team player Cristiano Ronaldo attends a training session.
But the 32-year-old has reportedly told super-agent, Jorge Mendes, to pull out all the stops to facilitate a return to the club where he first made his mark, Sun writes. I have no doubt that Cristiano will be able to defend himself. "I'll tell you if he was born to play for Madrid or not!"
Manchester United, Paris Saint Germain and Bayern Munich have since been the three European clubs linked with his services as they appear to be the only ones who can afford to make such an investment.
Ronaldo is at the Confederations Cup in Russian Federation, playing for Portugal.
Calderon was at Real when the club bought Ronaldo from the Red Devils in a then-world record £80m deal in 2009.
Prosecutors in Madrid have filed a complaint in which they accused Ronaldo of a "voluntary" and "conscious" breach of his tax obligations, amounting to a figure of €14.7million.