Matthews was released by the Rams in March and claims the team has still not paid him all of his guaranteed money.
The move comes weeks after Matthews and running back Todd Gurley, who was also released by the team, voiced their displeasure with the Rams. Gurley tweeted at the Rams’ Twitter account, “past due. Send me money ASAP.” Matthews quote-tweeted it, saying “You and me both TG!”
Matthews spent one season with the Rams, starting 13 games with 37 tackles and eight sack