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