Real Madrid star Cristiano Ronaldo has admitted that he is unsure where his future lies but has insisted that he wants to see out his contract at the Bernabeu.

The Portugal international has sparked concern over his position at the Spanish club after he previously revealed that he was unhappy during the course of the season.

"I want to see out my contract at Real Madrid," Ronaldo told FIFA.com. "I'm very clear about that. After that, well, I don't know what'll happen in the future."

The former Manchester United winger came second to Barcelona's Lionel Messi in the world governing body's Ballon D'Or vote.