Williams (ribs) will participate in Wednesday's practice, Adam Teicher of ESPN.com reports.
Williams is practicing for the first time since sustaining an injury to the left side of his ribs Week 11 against the Chargers. It won't be known until after practice concludes whether Williams was a limited or full participant, but the fact that he was on the field for the Chiefs' first session of Week 15 offers hope that he'll put an end to a two-game absence Sunday versus Denver. Once cleared to play, Williams will rejoin a backfield mix that includes LeSean McCoy, Darwin Thompson and Spencer Ware.