With Stephen Davis in a Rams uniform, the St. Louis Rams cut veteran Moe Williams and nine other players Saturday to get down to the league-mandated 53-man roster. Davis, a three-time Pro-Bowl running back released by Carolina in the spring, signed with St. Louis on Friday. Rams coach Scott Linehan indicated Davis would play in the season opener Sept. 10 against Denver despite not being in game-day shape, which led to the thought of keeping four backs on the roster.