3. Kaka | AC Milan
There's no denying that, at his peak, Kaka was a brilliant player – but he was not necessary ever a brilliant footballer.
In 2007 he deservedly won the Ballon d'Or after a wonderful campaign with AC Milan, but once his acceleration went, so too did Kaka the world-class footballer.
Some still consider him one of the best footballers in the world – although the fact Real Madrid offloaded him on a free transfer, despite buying him for over £50m four years earlier, tells you all you need to know about how far his stock has fallen.