#4 Emmanuel Adebayor

A marksman who nearly averaged a goal every other game in domestic competitions was allowed to join Manchester City for a reported £26.10 million at a time when the striking talent at the club was scarce.
The Togo international continued his form as he moved on to greener pastures in Real Madrid, where again scoring goals was never an issue. He returned to North London in 2011-12 season only to join Arsenal fiercest rivals Tottenham and scored 17 league goals in 33 appearances, including two against Arsenal.
Over the course of his stay at Tottenham, he predictably became a rather infamous figure amongst the Arsenal fans, however, food for thought is what Arsenal could have done with a proven goal machine when van Persie parted ways.