Whether a mooted move in the region of £88m happens remains to be seen, but either way with Ronaldo now 33-years-old, Madrid have to plan for the future.
The player's agent Jorge Mendes, however, has suggested that Ronaldo may look for a "new challenge" .
The multiple Ballon d'Or victor made noises to the effect that he may leave Real Madrid after nine years, following their third successive Champions League win in May.
Perez is desperate to sign Neymar too but Hazard appears the more likely signature at this stage, with Diario Gol reporting that No. 7 spot has been reserved for the Chelsea man.
The Real Madrid legend will reportedly cost Juve £88 million and there have been claims that, despite the move supposedly being financed by Fiat, the club would need to sell assets like Dybala or Gonzalo Higuain.
Mendes has previously insisted Ronaldo would be "eternally grateful" to Madrid if he decides to leave the club this summer.
One potential stumbling block would be the huge fees involved in such a deal.
Real have rewarded the main stars from each of the last four World Cups with a move to the Santiago Bernabeu and Russia's installment could follow suit with another Galacticos-like response.
Juventus have been dominating the Italian top flight for several years now, yet the Champions League continues to elude them.