After standing on the sideline in street clothes or watching his longtime understudy on the big screen the last six weeks, Manning's left foot is healthy enough for him to play again. Coach Gary Kubiak is sticking with Osweiler as his starter even with the league's only five-time MVP available Sunday when the Broncos (11-4) host the Chargers (4-11). A win by the Chargers would ease the sting of San Diego's worst season since 2003 and could send the Broncos tumbling into the wild-card round and a road game next week. Other story lines to keep an eye on Sunday when the Broncos try to wrap up their fifth consecutive AFC West crown: The No.