Best Nicknames in NFL History
Times Leader 09-15-2013, PDF, Wilkes Barre
List of NFL nicknames, American Football Database
Which NFL player has the best nickname? - Quora
Uncle Mike's Musings: A Yankees Blog and More
Excluding Jim Brown, who is the greatest running back in NFL history? - Quora
Best Nicknames in NFL History
Famous Nicknames of Famous People and Infamous People: Sobriquets, Portmanteaus, Epithets, Titles
How would an old school running back like Franco Harris or Larry Csonka fare in today's NFL? - Quora
Who was a better running back, Earl Campbell or Larry Csonka? - Quora
NFL Offensive Players / Useful Notes - TV Tropes
Comparing the Steelers' Jerome The Bus Bettis to the Redskins' Diesel, John Riggins - Behind the Steel Curtain