Getty: Mark Konezny / Stringer
Two of the best running backs in the history of the NFL played the bulk of their respective careers in Buffalo: O.J. Simpson and Thurman Thomas. While they both finished their careers with brief stops elsewhere, they will always be thought of as being Bills! Thomas ranks 16th and Simpson ranks 21st in terms of the most career rushing yards in NFL history. This quiz will test your knowledge about them and many other running backs who played for Buffalo. Time to Begin!