... players before they went pro that you may not have heard about. It is about the guys who switched positions at some point in their career before making it big as a pro. You may be surprised at some of the names on this list, as well as what position they once played. These are people you all know about as a professional, but might have heard much about them prior to then. This article also includes a general background of the featured players' athletic careers. They are all big names, some who are even legends who will be remembered for playing one position better than most others. But if you don't know how these guys started off their football careers, you can now find out.

Bleacher Report - NFL