Those reports were prompted by accusations - which the player denied, that he defrauded Spanish tax authorities out of €14.7million.
When it became public that a prosecutor in Madrid filed a tax fraud complaint against Ronaldo on June 13, the news went viral and several global media platforms speculated that this could cause the footballer to leave Real Madrid this summer.
The statement also said that Mourinho had received a certificate from the authorities confirming that he was "up to date with all his tax obligations".
A four-time Ballon d'Or victor, the 32-year-old Ronaldo is the top European soccer player.
Ronaldo is accused of knowingly using a "business structure" to hide income made from his image rights.
The Economic Crime Section of the Provincial Prosecutor's Office of Madrid has filed a complaint with the Court of Instruction.
However, Real Madrid president Florentino Perez is adamant that Ronaldo will continue to be a player for the world's biggest football club.
Portugal's all-time record scorer has been linked to former club Manchester United and other top clubs after running into problems with tax authorities.
Ronaldo's Real Madrid future was in doubt when it was reported in the media that the star forward was unsettled at Real Madrid. "We don't want to disturb his concentration with the national team", said Perez.
Cristiano Ronaldo celebrates with Real Madrid's Sergio Ramos after scoring the opening goal during the Champions League semifinals first leg soccer match in May.
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