Montgomery plans to wear the No. 21 taped to his left arm. The move signifies his support for South Carolina running back Marcus Lattimore, who's season ended after a horrific leg injury against Tennessee.
The defensive lineman's ties to South Carolina were front-and-center when the Tigers hosted the Gamecocks in early October, and his connection appears to cross opposing team lines.
No. 5 LSU (6-1) hosts undefeated and top ranked Alabama in Baton Rouge on Saturday, Nov. 3rd.