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