Would love it to be Xabi but Arbeloa would be a more realistic choice. Both are playing regularly in the Madrid side but with the arrival of Contraeo , Arbeloa will have lesser chances. But in my opinion it would be some Liverpool youth player that were released to other clubs and now impressing the new management. Maybe it will be players such as Paul Anderson and Danny Guthrie but this is just my assumptions...
Just My Thoughts
YNWA...