The San Diego Chargers say center Nick Hardwick sustained a concussion as well as a stinger in Sunday's playoff victory over the Cincinnati Bengals. Rookie coach Mike McCoy, who's loath to discuss injuries, says the concussion was diagnosed after the game. It's not known whether Hardwick will be able to play in Sunday's divisional round game at Denver. Running back Ryan Mathews also didn't practice Wednesday and was in a walking boot to protect his injured left ankle. More...