In an exclusive interview with Portuguese broadcaster TVI, the Portugal international revealed that Spain is really in his mind.

He said: "I would like to play in Spain one day. I also would like to play in Portugal [again] and Italy, but much more in Spain."

Despite his dream, Ronaldo admitted he would stay in England for "10 or 20 more years," adding: "I feel well in England."

The 23-year-old said: "Many players are talented, but if that talent is not developed they will never go anywhere.

"I keep improving everything I have. Four years ago I was not the player I am now. I improved and I better understand the team-game concept.

"I think I still can improve. My learning process has not finished yet."

Ronaldo has scored 27 goals with United this season and he wants more - but admitted that there is a limit.

He explained: "Last season I scored 23 goals and some people doubted that I could do it again.

"This season I have just scored more, and things are going fast.

"I aim to score more and shine even more, helping the national team and my club - but to score 50 goals is a bit hard."