It was a neck injury that ended T.J. Lang's 2018 season.
The risks associated with the combination of T.J. Lang remaining with the Lions likely will be higher than it pays for both parties to come to a reduced contract agreement.
The Lions need at least one significant addition at Guard even if T.J.Lang and/ or Kenny Wiggins are retained.
A strong case can be made that it's best to release both of them, with the salary cap savings and the draft providing better options at Guard for the Lions.