Value: £30.8million When Manchester City splashed out an eye-watering £32million to prise Eliaquim Mangla away from FC Porto, they knew they were investing in a centre-back of exceptional quality. Similar to his skipper Vincent Kompany, the France international's aggressive, all-action style is perfectly tailored to the demands of the English game. However, Managala must concentrate on ensuring his combativeness doesn't result in needless fouls or bookings a habit already exposed a couple of times this season against Hull City, Newcastle and Southampton. But a smattering of tutoring and good ol' fashioned experience should refine the 23-year-old into a formidable defender, and Manuel Pellegrini will reluctant to let him go without making a handsome profit.