3. Ibrahim Afellay (Netherlands):
The Dutch winger was one of the most exciting prospects in Europe a few years ago but the expectations that were laid on him in his stint in Spain saw him lose some confidence, which in turn, affected his entire career. The 30-year old was a long term servant for PSV Eindhoven in his home country but Barcelona were impressed with his returns and spent on him back in 2011.
He was content with 18 substitute appearances in his first season at the club but he failed to have the kind of an impact expected of him. He scored just 1 goals in 21 appearances in his two years at the club and quite evidently Barca were not impressed with his performances and sent him on loan for the next two seasons before completely selling him. He is a gifted player but he joined the long list of players who spoilt their careers with a move to Spain.