Juwan Simpson returned a Casey McGahee fumble for a touchdown with less than three minutes remaining, breaking open a one-point game as the Calgary Stampeders beat the Saskatchewan Roughriders 27-19 before 29,107 fans in CFL pre-season action on Tuesday night.

McGahee, the rookie wide receiver, had kick returns of 19 and 39 yards to his credit in the game but lost the handle on Burke Dales' punt at the Saskatchewan 10-yard line. Simpson picked up the loose ball and scampered unchallenged into the Riders' end zone to close out the scoring.

Calgary opened the scoring in the first quarter with a five-yard touchdown run by Joffrey Reynolds. Stamps quarterback Henry Burris was 6-for-6 on the nine-play series, racking up 66 of his 175 yards in the game.

Saskatchewan's quarterbacking foursome of starter Steven Jyles, Darian Durant, Dalton Bell, and Juan Armour combined to go 17-of-30 for 191 yards. Calgary also utilized former Rider Drew Tate and Matt D'Orazio at quarterback in the game.

Burris later connected with Jabari Arthur on a five-yard touchdown strike and Calgary held a 17-14 lead after the first half. Sandro DeAngelis kicked two field goals and three converts to round out the scoring for the Stampeders.

Saskatchewan scores came on a two-yard touchdown run from Justin Beaver, a 34-yard touchdown toss by Durant to Andy Fantuz, a 32-yard field goal by Luca Congi, and a safety conceded by Calgary punter Burke Dales.

Derek Watson led all rushers with 75 yards on 13 attempts.

The Roughriders finished the pre-season 0-2 and will open the regular season at home July 3 against the B.C. Lions. The Stampeders were 2-0 in the exhibition schedule and host the Montreal Alouettes in their season opener on Canada Day.