Manchester United [Images] said on Friday that Cristiano Ronaldo [Images] is "not for sale" despite the Portuguese winger's comments saying he wants to join Real Madrid [Images].

"Further to Friday's press speculation about where Cristiano Ronaldo's future lies, the club has moved to reiterate its stance on the matter: United are not listening to offers," United's Web site said.

• Ronaldo hints at Real Madrid move

The 23-year-old told reporters after Portugal's 3-2 Euro 2008 [Images] quarter-final defeat by Germany [Images] on Thursday that "the possibilities [of going to Real] are big but it doesn't depend on me".

The future of England's [Images] Footballer of the Year has been under scrutiny since United's Champions League final victory over Chelsea in Moscow [Images] last month.

United reported Spanish champions Real to soccer's world governing body FIFA over what manager Alex Ferguson saw as an illegal approach for a player still under contract. FIFA said Real had done nothing wrong.

• Ronaldo delivers to match the hype

However, Ronaldo has done nothing to stem the speculation and told reporters that joining Real is "something I dream about, a step forward... For me it's a very good opportunity."

Ronaldo, who signed a five-year contract with United last year, scored 42 goals last season. He is due to have a small operation on his foot in the next few days.