Trent Richardson is an American former professional football player who was a running back in the National Football League (NFL). He played college football for the Alabama Crimson Tide, where he was recognized as a unanimous All-American and was a member of two BCS National Championship teams. Trent Richardson has hand signed this Alabama Crimson Tide NCAA Riddell Full Size Helmet. Pristine bold full silver signature, inscribed #3. Radtke Sports Hologram and Radtke Sports.com Certificate Of Authenticity and Photo Of Signing.