NFL Primary LogoNFL Alternate LogoNFL Wordmark LogoNFL Team History Who is the greatest running back in the NFL of All-time? Franco Harris Barry Sanders Tony Dorsett LaDainian Tomlinson John Riggins Marshall Faulk Curtis Martin Marcus Allen Gale Sayers Eric Dickerson Emmitt Smith Jerome Bettis Edgerrin James Walter Payton Jim Taylor Adrian Peterson Earl Campbell Thurman Thomas Jim Brown Larry Csonka …