Chargers' center Nick Hardwick had surgery on March 14 to repair a sprained right foot. He is expected to undergo a four-to-six month recovery period. Hardwick suffered the injury early in the Chargers? game against the Oakland Raiders on Oct. 14 and missed the next four games. He returned for the Nov. 25 game against the Baltimore Ravens and played in the team?s final six regular-season games and three playoff games.