The Cardinals on Tuesday placed CB Malcolm Butler on the reserve/retired list. That came a day after NFL Network's Mike Garafolo surprising report that a "personal situation" had Butler considering hanging 'em up. That leaves Byron Murphy and Robert Alford as the top 2 CBs for Arizona. The 3rd isn't yet clear, but 4th-round rookie Marco Wilson might be trending toward occupying that spot. We'll see whether the Cardinals add a contender for the role.