Poll: Which Shirt Will Ronaldo Wear At Real Madrid?:

"Now that the Ronnie-to-Real guessing game is over, another crops up: What shirt will the Portuguese winger lift at the Bernabeu? The No.7 jersey he wore at Old Trafford is filled in Madrid by Raul, which explains why it can be backed at 4-1. The No.9 shirt is favourite at 11-10, with 23, the one modelled by David Beckham, at 10-1. The rest are just making up the numbers." (Source)