Hardwick was attempting to block Bengals linebacker Rey Maualuga when the two collided helmet-to-helmet. Hardwick staggered around like he was dazed before taking a knee on the turf, and he went to the bench where he was examined by team trainers.
Hardwick suffered a neck stinger about a month ago when the Chargers last played the Bengals. He has been replaced at center by Rich Ohrnberger.
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