- Juan Mata (£37.1m):
One of the very few times Manchester United managed to convince their title rivals to sell was when Jose Mourinho decided to sell Juan Mata to Manchester United back in 2014. In his 82games at Chelsea Mata scored 18 goals which impressed David Moyes the then manager who spent on him. He is now assuming an important role ironically under Mourinho at Old Trafford and has already made close to 100 league appearances for the Red Devils.