He was certainly a bargain last season when he made roughly $1.6M and produced 9.5 sacks. So the Panthers signed him to a new contract:
Mario Addison Contract Details, Salary Cap Charges, Bonus Money | Over The Cap
Mario Addison signed a $22.5 million contract with the Panthers on February 26, 2017. Addison received $9 million fully guaranteed at signing, including an $8 million signing bonus.That’s a fat signing bonus and as it turns out he’s still a bargain.
Carolina Panthers: Mario Addison ninth most underpaid player in NFL
9.