Perez stressed that unless another club is willing to pay $1.2 billion for Ronaldo, the world's biggest football star will continue to remain in the world's biggest football club.
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Spanish prosecutors have accused the Portugal global of defrauding the tax authorities of €14.8m (£12.9m). Lionel Messi and Javier Mascherano, among others, have already been convicted. "We don't want to disturb his concentration with the national team", said the Spaniard. What people can not do is talk about him like he is a delinquent, that bothers me and is hurtful.
The Spanish media have claimed the Real Madrid star must be in the courtroom in Pozuelo at 11am local time for the beginning of the case.
Perez also declared that the situation will be fully dealt with once Ronaldo returns from the Confederations Cup, while recent rumours claim that Ronaldo is now more settled following Perez's public backing.
Prosecutors accuse Ronaldo, who is the world's highest-paid athlete according to Forbes magazine, of evading tax via two companies based in the British Virgin Islands and Ireland. We will work hard to ensure that Real Madrid are named the best club of this new century.
Paris Saint-Germain and Chelsea are also reported to be interested but Bayern Munich president Karl-Heinz Rummenigge denied the German champion would make an offer. He has led Madrid to back-to-back Champions League titles and its first Spanish league in five seasons this year, and helped Portugal to win last year's European Championship.