Kalil was the center of offensive lines that opened holes for running backs DeAngelo Williams and Jonathan Stewart, who combined to post three 1,000-yard rushing seasons in their career, with each breaking the mark in 2009. He also was a key part of a Panthers team that won the NFC and reached Super Bowl 50 in the 2015 season.
Unlike longtime players who announce their retirement prior to their final season, Kalil doesn't want the sentimental moments.
"I'm not doing the farewell tour," he said, per the Observer, "that's for sure."
He'll get a full offseason to train after a shoulder injury kept him out of preparation until shortly before camp.
"I didn't get to start training until right around training camp, like actually football training," Kalil said. "I just felt way behind and I didn't feel as physically ready for the season as I would have liked to have been."