The nine most expensive buyout clauses in world football: Arsenal and Chelsea targets set to cost mega money

7. Aymeric Laporte – Athletic Bilbao

Buyout fee: £33m

Laporte has been on the wish list of Manchester United for the better part of a year, but Athletic are becoming more adept at protecting their interests as the years go by, which they exercised by offering him a huge new deal that saw his buyout clause soar to over £30m.