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