Martin was a fifth-round pick of the Packers in 2020, and started six games for them last year.
The Panthers used one of their four practice squad protection spots for him last week, an indication they liked what they’ve seen of him in practice.
Thompson left Sunday’s game and was getting his foot checked on the sidelines, but he returned to the game. Panthers head coach Matt Rhule mentioned some players were getting MRIs Monday, but didn’t specifically mention Thompson.
https://www.panthers.com/news/kamal-martin-signed-to-active-roster-from-practice-squad