The winger made his statement from Portugal's training camp in this Swiss city on Wednesday.

The 23-year-old made it clear that he wants to sign for the Spanish champions, as long as they make good on their promise of world-record transfer fees and wages.

Spanish newspapers claim Real are ready to pay the Portuguese a weekly salary of £300,000 (S$802,000), to nearly triple his United pay.

That works out to £15 million a year, more than twice as much as the next highest earners in football.

The transfer fee will, without a doubt, be more than the world-record £46 million paid by Real to Juventus for Zinedine Zidane in 2001.

The figures that have been circulated range between £60 million and £100 million.

'I want to play for Real Madrid, but only if it's true they are eager to pay me and United what they have been saying they will,' said Ronaldo.

'However, it does not depend on me.'

The transfer saga has overshadowed Portugal's preparations for the European Championship, reported The Guardian.

Hoping to prevent more questions at team press conferences, Ronaldo insisted that he would not speak of his desire to join Real again.

'It is important to send a message,' he said. 'From now on, I will not talk again about this until the end of the Euros. It is not worth asking me because I will not reply.'

His announcement will only strain relations with United and Alex Ferguson, who has stated that the club will rather let their star rot in the stands than sell him to Real.

Spanish paper Marca reported that Portugal coach Luiz Felipe Scolari had advised Ronaldo to move to the Spanish capital.

Real president Ramon Calderon has already insisted that not only can the club afford the transfer fee, they can also accommodate Ronaldo's wage demands.

They also believe that his image rights, through projected shirt sales, are expected to outdo even David Beckham's during his spell in La Liga.

He said: 'Nothing is expensive or cheap on its own. Last year, we made signings that looked expensive. But, now, they look cheap.'

Real striker Ruud van Nistelrooy, who quit United two years ago, believes Ronaldo would be an important signing, reported the Times.

'This is a club which signs the best players in the world, and that's what Cristiano is,' he said.

'Cristiano could bring a lot to this club. He's young, he has everything and a long sporting career ahead of him. For Real, he would be a great signing.'

Nike would prefer that Ronaldo move to Barcelona rather than adidas-sponsored Real, should he leave United.

But it seems Ronaldo's heart is set on Real, with his mother claiming that she wanted to see her son at the Bernabeu.