Real have relentlessly pursued Ronaldo and could now land the talented Portuguese winger if they stump up around an estimated £70million which would be the most expensive football transfer in history.
"I would like to play for Real Madrid but only if it is true they are ready to pay what Manchester United ask of them," he told Brazilian website Terra.
Ronaldo says he hopes that the announcement would bring closure to the speculation linking him with a possible move to the Bernabeu.
The 23-year-old, who is preparing for Euro 2008 with the Portugal side, also insisted he will not discuss it until after the tournament.
He added: "From today I'm not going to talk about this topic with anyone at all.
"I'll only talk about this again after the European Championships.
"Don't ask me any questions because I won't answer."
United have repeatedly insisted their star player would still be at Old Trafford for the
2008/09 campaign.
Ronaldo, 23, scored 42 goals for the Premier League and European champions last
season.
The transfer could spark a major row between United and Madrid with manager Sir Alex Ferguson stating last month they may report the Spanish club to FIFA for making their pursuit of Ronaldo public.
Zinedine Zidane become the most expensive transfer in history when he joined Real from Juventus for £50million.
