4. Robinho | AC Milan
The boy from Brazil who was once dubbed the 'new Pele' never fulfilled his immense potential.
The fact that he can no longer get into the Brazil squad speaks volumes for the 29-year-old who should have been at the peak of his powers by now.
All too often he's all style and no substance – and even then the style that he excited the world with during his spells with Santos and Real Madrid has diminished significantly in recent years.