Just been reading Graeme Souness autobiography... one of the best and most underrated players I ever had the pleasure watching. He puts Messi at the top of the tree, above Maradona.... but alludes to frequent arguments with Hugh McIlvaney (legendary British sports writer) who has Diego at the top. Of the players he played against himself... he said there were two players he couldn't get near or read... Alan Ball and Zico.