According to what a source told The Sun, PSG is one of only four or five clubs in the world that can afford Ronaldo's fee, and they have interest in the Ballon d'Or finalist:
However, he still has an ongoing contract with Real Madrid and we have to realise that he will not leave Madrid for just any club. When we are discussing a possible transfer for a player like Cristiano Ronaldo, there are only four or five clubs that can be taken into consideration. PSG are one of those.
Obviously, a move of magnitude isn't going to happen in January's transfer window. Real Madrid is third in the La Liga table at the season's midpoint, and Jose Mourinho isn't about to allow Ronaldo to leave when a championship is still very much up for grabs.
It's also certainly a factor that Mourinho isn't a favorite right now among Real Madrid fans, with 42 percent of fans wanting him out at the end of the season, according to a Marca study (h/t ESPN).
While that may seem like a roadblock to Ronaldo transferring to PSG this winter, it could actually set up a perfect opportunity in the summer. With months to think about a possible offer, both Madrid and Ronaldo will have plenty of time to mull over their future relationship and come to a decision.
As for Ronaldo's side of things, it's almost a no-brainer that he should consider making a move to PSG.
First and foremost, the argument for a transfer starts with the Portuguese star's unhappiness with his current situation. Though his lack of adequate extension likely plays a role, Ronaldo made it clear in September that things are on rocky terms at the Bernabeu.
“I’m sad—when I don’t celebrate goals it’s because I’m not happy.” Ronaldo said (via The Telegraph). “It’s a professional thing. Real Madrid know why I’m not happy.”
Though he's been much more diplomatic of late publicly, there hasn't been much reason for optimism on Real Madrid's side of the relationship. Ronaldo rejected an improved extension deal with Los Blancos (h/t Football-Espana.net) and Marca reported in December that the 27-year-old striker "genuinely wants to leave the club."
The reason? He feels "neither loved nor supported" by Real Madrid and top boss Florentino Perez.
More important than financials for Ronaldo, however, would be respect. For as long as he's playing in La Liga against Lionel Messi, he will be seen as simply the second-best—a guy who's great, but isn't Messi. And considering Messi is both younger and the winner of four straight Ballon d'Or trophies, it seems inevitable that Ronaldo will remain second fiddle without a change of scenery.
PSG could offer that in spades. Instead of being the second-best player in his own league, Ronaldo would be far and away the best player in France's first division and the key cog in a rising giant worldwide.
Where will Cristiano Ronaldo play in 2013-14?
There is, however, one monkey wrench that could be thrown in this pairing: Manchester United. The Sun reported in December that Ronaldo is interested in coming back to Old Trafford, where he played from 2003-09.
With Manchester United boss Alex Ferguson heaping praise on Ronaldo of late (h/t The Independent), it seems like a possibility.
However, PSG has the money to outbid everyone in their chase of Ronaldo and may just do it. That could leave Ronaldo with the choice of staying somewhere he's unhappy until 2015 or making the move to Paris.
He may ultimately decide to stay with Real Madrid, but PSG deserves some deep consideration.