4. Thiago Alcantara
http://www.youtube.com/watch?v=XG3HIH57Fa0 One of Spain's brightest talents, and a key figure in their U21 European Championship victory in 2011, many expected Thiago to kick on and become one of Barcelona's key men, with some even tipping him to be the long term replacement for Xavi. However, Thiago has found opportunities exceedingly hard to come by. With Xavi, Iniesta, Busquets, Mascherano, and Fabregas all ahead of Thiago in the battle for midfield roles, it seems unlikely that Thiago will be able to establish himself at Barcelona any time soon. In addition to his unhappiness over a lack of game time, clubs have been alerted that Thiago's buy out clause has been drastically reduced due to a lack of game time.
Manchester United are reportedly favourites to secure the Spanish starlets signature by matching his buy out clause believed to stand at around £15 million. However, with an opportunity such as this, United will have to fend off a host of top European clubs to pull off this coup.