Ronaldo has struggled for Real Madrid this season with just two La Liga goals prompting many to deem the 32-year-old as being past his best.
As a result, talk has been rife that Los Blancos will replace him with PSG forward Neymar.
Neymar only moved to the Parc des Princes from Barcelona in the summer but reportedly already wants out, with the Brazilian at odds with manager Unai Emery.
It has previously been mooted that Real Madrid would love to offer Ronaldo to PSG in order to land Neymar, who is viewed as the heir to the 32-year-old by club president Florentino Perez.
And Spanish outlet Don Balon say Madrid plan to do just that at the end of the current campaign.
Real Madrid star Cristiano Ronaldo open to joining PSG as part of Neymar swap deal
Express | Dec 6