KANSAS CITY, Mo. (AP) — The Chiefs have promoted running back Charcandrick West from the practice squad and signed tight end Phillip Supernaw after losing Cyrus Gray and Demetrius Harris to season-ending injuries. West signed with the Chiefs as a rookie free agent this season, and had spent nine weeks on their practice squad. Supernaw has played four games in two seasons with the Ravens and Texans, and has spent time on both practice squads.