2. Cristiano Ronaldo | Real Madrid
Highest market value: £88m (d.o.v - August 7 2012)
Current market value: £88m
You know what this means. Ronaldo may play second fiddle again, but CR7 is still one of the most valuable of all-time.
If Real Madrid were to sell him, now would be a good time. They could still receive a world-record fee, and he's only 18 months away from his 30th birthday.