Guard Geoff Hangartner left the Panthers for the Bills in 2009. Two seasons into his Buffalo tenure, Hangartner got the boot.
Steve Reed of CarolinaGrowl.com reports that Hangartner is back with the Panthers, and that he could start this week against the Cardinals, due to injuries to Geoff Schwartz and Garry Williams.
Hangartner and newly-signed Max Jean-Gilles are the primary candidates to take the spot between center Ryan Kalil and right tackle Jeff Otah on Sunday.
Though Hangartner was never a full-time starter, injuries allowed him to start 27 games in his first stint with the Panthers.
Hangartner started all 28 games in which he appeared during his time with the Bills. He served as an offensive captain in 2010, after quarterback Trent Edwards was released.