Football transfers tend to follow a certain pattern. A club shows interest in a player and then they negotiate with the player’s club on a fee to acquire their services. The fee is often determined by how valuable the player was to his old club and the impact he is expected to make at his new club. So, in general, the best players often command the highest fees such as Neymar’s 222 Million Euros move to PSG. But in rare cases, clubs are able to sign the best players in the world, for free and no fees at all if their contracts expire without a renewal. In this video, we will look at some players who didn't cost a penny, but went on to do great things for their club. Here are the best free transfers in the history of football.