Can you name the 20 most expensive defenders in Premier League history?
Manchester City and Manchester United have been responsible for signing 12 of the 20 most expensive defenders in Premier League history – but can you name the full 20?
Liverpool, Chelsea, Arsenal and Tottenham signings make up the other six, and we have given you the year and fee for each defender to help you out. You’ve got 15 minutes to name all 20.
If you fancy another challenge, try naming Harry Redknapp’s 30 most-used players in the Prem era.
If you haven’t already, sign up for a Planet Sport account to access hints for those tricky answers and to register your score on the leaderboard.
Good luck, and don’t forget to tweet us your scores @planetfutebol.