The Chiefs placed Kolby Smith on season-ending injured reserve Saturday and promoted rookie Javarris Williams from the practice squad to help bolster their depleted backfield.
Second-year pro Jamaal Charles is expected to make his fifth consecutive start at running back for the Chiefs, but there isn’t much depth behind him. Dantrell Savage is listed as doubtful to play Sunday against the Broncos because of an ankle injury that limited him in practice all week, leaving Williams and third-year pro Tim Castille as Charles’ likely backups.
Smith, a third-year pro who missed part of last season because of a knee injury, returned in Week 9 this season and played in four games before hurting his ankle. He had just 33 yards on 15 carries.
Williams was a seventh-round draft pick of the Chiefs, who started this season with former Pro Bowl pick Larry Johnson as their starting running back but released him ;last month after he made some controversial comments about coach Todd Haley and fans.