Over the years we have seen some players emerge and shine at certain clubs only to leave the said clubs in search of greener pastures. Well, the grass isn't always greener on the other side and after enduring unsuccessful spells elsewhere, these prodigal sons eventually return to their parent clubs.
Juan Mata arrived at United for £37.1million during the January transfer window. The former Chelsea man was hailed as the savior to Man United's shocking season, but couldn't do anything to prevent the failures of David Moyes. Since Louis van Gaal took the reigns at United, Mata has seemed to disappear