Y(N)uri Sahin( Liverpool)
Kagawa (Manchester United)
What are you talking about?
Sahin had 7 games on loan to Liverpool before bailing because he wasn't given a chance. Been in blistering form on loan at Dortmund since January.
Kagawa has been unlucky with injuries, and it's not as if he has done badly in the handful of appearances he's been able to make in his first season in a new country and a new league.. Will be class for United, and if not he'll be class for someone else. Also worth mentioning they're both 24. Not exactly past it are they.
Actual ones that fall into this category would be Seth Johnson (remember him? signed by Derby for £3 million at 20 in 1999, then for £7 million to Leeds two years later and did jackshit), Michael Johnson, Francis Jeffers, Bruno Cheyrou (who Gerard Houllier hailed as "the new Zidane" :lolol) the list goes on.