This was mentioned on Sky Sports. Apparently Madrid have leaked information to Spanish magazine Marca regarding their latest bid for Ronaldo. They do a lot of leaking

to try and persuade the player etc.
Anyhoo it is broken down somewhat like this:
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C. Ronaldo = 50 million + Robinho + S. Ramos + Diarra
According to Marca, Manchester United are demanding 50 million plus three players from Real Madrid in order to release Cristiano Ronaldo. Those 3 players are Robinho, Diarra and Sergio Ramos.
Those 3 players are evaluated at 100 million, IMHO: Diarra 25 million, Robinho 35 million, Sergio Ramos 40 million.
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I also heard yesterday that Real are willing to offer Ronaldo £220k a week (thats sterling not Euros) so he comes away with £150k after tax. There are too things that bug me about this... 1) Thats an insane amount of money and 2) Thats an insane amount of tax.
Oh to be a rich bastard!