The Riders have added Canadian Blair Smith to their roster on a one-year contract.
Smith spent five seasons with the Edmonton Football Team before being released on Monday.
The 6-foot-2, 230-pound linebacker has mainly contributed on special teams in his career. In 59 games he has 57 special teams tackles and 16 more on defence.
He did start one game at weakside linebacker for Edmonton in the 2017 season.
