Sir Alex Ferguson has dismissed speculation that Cristiano Roanldo could leave Manchester United.

Reports in Spain suggest that Real Madrid and Barcelona are preparing bids for the Portuguese winger.

Ronaldo, 20, is in talks to extend his current contract which ends in 2008.

Ferguson told A Bola sports daily: “There’s no chance of him leaving, he’s three years left on his contract and he’s sure to sign a new one.”

Ferguson’s denial comes after Ronaldo’s agent warned that the winger’s future at Manchester United will be in doubt if the club does not significantly increase his wages.

Jorge Mendes said: “It is important to recognise that Cristiano Ronaldo is now a world star.

“If the club says he’s a symbol of the future and an idol for the fans then they have to pay him accordingly.”

Ronaldo joined United from Sporting Lisbon in a £12.6m deal in August 2003.