Rookie McCluster listed as doubtful for Monday night

The Kansas City Chiefs listed rookie running back-wide receiver Dexter McCluster as doubtful for Monday night's game against San Diego because of an unspecified illness.

McCluster did not practice Friday, according to *The Kansas City Star*.

McCluster would be a loss for the Chiefs. The second-round pick out of Mississippi has given the offense a much-needed infusion of quickness, energy and versatility.

The Chargers, relatively injury free, listed three-time Pro Bowl linebacker Shawne Merriman as doubtful. Merriman is battling an Achilles' heel injury. Backup quarterback Billy Volek was listed as probable.

Chiefs linebacker Tamba Hali and tackle Ryan O'Callaghan were listed as questionable for the game at Arrowhead Stadium. Rookie linebacker Cameron Sheffield is out with a neck injury.

The Associated Press contributed to this report.