 Couper, wearing uniform number 81, played in nine of the Claymores' ten seasons of existence, initially retiring in 2001 before making a comeback in 2003.Couper amassed over 100 receptions and scored 10 touchdowns in his time with the club, and was voted the league-wide National Offensive Player of the Year in 1997.He played in two World Bowls with the Claymores, winning a World Bowl ring in World Bowl IV.