Bojan Krkic
He broke Lionel Messi’s record as the youngest player to play for Barcelona in La Liga, and looked set to follow in the Argentine’s footsteps. However, Bojan never managed to recreate his youth squad form in the first team. He was loaned out to sides such as AC Milan, AS Roma and Ajax, before ending up permanently at Stoke City. The 24-year-old has shown some signs of rebuilding his career at the Potters.