Center Nick Hardwick was cleared to work out five days after sustaining a concussion and was a limited participant as the San Diego Chargers practiced for the final time for their divisional-round playoff game at Denver. ''We'll see how we respond in the next day or two and go from there,'' Hardwick said. He was listed as questionable on the injury report, meaning the Chargers feel he has a 50-50 chance of playing. Running back Ryan Mathews didn't practice all week and also was listed as questionable. More...