Yeah, but this is the scenario most people have in mind when they speculate about Ronaldo returning.
Personally, I think it's unlikely that he would return, however if the rumours about him wanting out are true, then he won't sign a new contract and Madrid will be forced to sell at a cut price. You just never know in football.
Certainly, the man looks very uncomfortable anytime he's asked about his happiness at Madrid, compared with nothing but praise for United and SAF.
Who knows, maybe he's done what he wanted to do, play for Madrid and maybe now he thinks it's time to return to the club that made him, the manager who is 'like a father figure' and the fans who he has 'always shared a special relationship with'.
If he feels he's been mistreated by the club, the staff, fellow players and the fans, maybe it's time for him move on.
If he's for sale, we'll be in with a shout of getting him, should we be interested.