The newspaper said its story was based on a reliable source, and that the 32-year-old four-times world player of the year had already made up his mind to ask the club for a transfer.
It said that Ronaldo was “deeply disenchanted” with the allegations against him.
Spanish prosecutors have filed a lawsuit against the player accusing him of defrauding tax authorities of €14.7 million by hiding his image rights income between 2011 and 2014.
Ronaldo has denied any wrongdoing.
Ronaldo led Real Madrid to their 12th European Cup earlier this month after scoring two goals in a 4-1 victory over Juventus in the Champions League final, becoming the tournament’s top scorer.
Ronaldo, Portugal’s all-time leading scorer, is the latest in a long line of soccer players in Spain – among them Barcelona’s Lionel Messi and Neymar – to be caught up in cases over tax or transfers.
Ronaldo has completed eight seasons at Real Madrid since joining them from Manchester United in 2009 for a then-world record fee of €96m.
During that time, they have won the Champions League three times and La Liga twice. In November, he agreed to extend his contract until 2021.
He is currently at the Confederations Cup in