Perez insists former Manchester United star Ronaldo can retire as a Real player.
"I do not know if the Merengues are very concerned about Cristiano because he has two years left on his contract and we do not want him to leave Real Madrid," declared Perez.
"I think he is going to retire here. We're going to win the 'Tenth' (Champions League) with Cristiano. ASAP.
"We have many years together and soon will end up winning it."