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