Juan Mata (€44.73m to Man Utd) Clearly the tapas wasn't authentic enough for Mata around Stamford Bridge as he switched Chelsea for Man Utd midway through the 2013/14 campaign.
Throughout the history of the NBA, shoes associated with star players have fetched ridiculous amounts of money when put on the market, but what is the most expensive basketball shoe in the world?
As Barcelona's leading youth prospect, he had been signed with Nike since the age of 14, but transferred to Adidas after they successfully won the claim to his image rights in court.