6. Sergio Ramos
Transfer fee: €27m
Real Madrid paid Sevilla €27million for Ramos's services in the summer of 2005, soon after the then 19-year-old Spaniard was named La Liga Breakthrough Player of the Year.
The transfer fee represented a record for a Spanish teenager, and the centre-back has gone on to prove his worth having now established himself as vice-captain at the Santiago Bernabeu.
Ramos's detractors point to a hot-head, and with it a poor disciplinary record, but he is without doubt one of the best defenders in the world, having also cemented his place in the Spain national team.