Bosman at 25: Who made the best free transfer? Last updated on comments Decent, if unremarkable, as a player. An absolute game-changer as a court case. It is now 25 years since Jean-Marc Bosman entered the European Court of Justice as a midfielder and emerged as a noun. He wants a Bosman. The Bosman rule. We're signing him on a Bosman. The change in employment law meant footballers could choose to run down their contracts and move clubs on a free transfer. With some caveats. It changed football hugely. But who have been the best "Bosmans" and had the most success? Take a look at our list of the best 10 and rank them at the bottom of the page.