Panthers C Ryan Kalil suffered a left knee injury in Saturday's preseason game.
Panthers restructured C Ryan Kalil's contract, reducing his 2014 base salary from $4.75 million to $855,000.
The Charlotte Observer reports the Panthers could be looking to restructure the contracts of C Ryan Kalil and DE Charles Johnson.
Panthers C Ryan Kalil (Lisfranc fracture) acknowledged that he could need regular maintenance on his surgically-repaired foot throughout the season.
Panthers C Ryan Kalil (Lisfranc surgery) expects to be 100 percent for training camp.
Panthers C Ryan Kalil (Lisfranc surgery) says he is "on track" in his recovery.
Panthers C Ryan Kalil has restructured his contract.
Panthers C Ryan Kalil (Lisfranc surgery) is expected to be ready for OTAs this offseason.
Panthers placed C Ryan Kalil on injured reserve with a foot injury, ending his season.
Panthers C Ryan Kalil could be done for the season with a foot injury that's "worse than first thought."
Panthers signed C Ryan Kalil to a new six-year, $49 million contract, with $28 million guaranteed.
Carolina C Ryan Kalil hinted Thursday that the Panthers could be featured on HBO's Hard Knocks this summer.
Panthers signed franchise player C Ryan Kalil to a one-year, $10.51 million contract.
Impending free agent C Ryan Kalil plans to sign his franchise tag tender.