Panthers need to get younger during offseason

CHARLOTTE, N.C. -- Outside linebacker Thomas Davis, 34, and center Ryan Kalil, 32, have announced that the 2018 season will be their last. Defensive end Julius Peppers, 38, likely won’t play past this year if he plays at all.

Running back Jonathan Stewart, who will turn 31 in March, is in the last year of what likely is his final contract. So are defensive end Charles Johnson, 31, and safety Mike Adams, 36.

Pro Bowl tight end Greg Olsen, 32, only has one more year left on his deal.

A lot of key players for the Carolina Panthers are getting old. Even quarterback Cam Newton, who turns 29 in May, likely is closer to the end of a productive career than the beginning because of all the hits he’s…