Panthers sign C Thomas Austin
Kalil, a three-time Pro Bowl center, was moved to injured reserve after tearing a ligament in his left foot in Carolina's 16-12 loss to Seattle on Sunday.
Austin entered the NFL with the Minnesota Vikings in 2010 as an undrafted free agent out of Clemson.
He spent time on the Vikings and Patriots practice squads that season.
Copyright 2012 by The Associated Press
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