Ten of the most successful Bosman transfers
Sol Campbell (Tottenham-Arsenal)
With any free transfer, there is an element of animosity from one party, but none have quite been as bitter as this. One of the finest and most coveted young defenders in England, Campbell could have earned Spurs a tasty little transfer fee, but decided to leave for nothing and join their bitter rivals to boot. He went on to fulfil all of his potential at Highbury, and received furious abuse whenever he played against his former side.