Turnovers and an unusually porous defence cost the Calgary Stampeders a return trip to the Grey Cup Sunday in the CFL's Western Final as they lost 45-31 to the Edmonton Eskimos.

The Eskimos will face the Ottawa Red Blacks in next week's 103rd Grey Cup in Winnipeg.

The Red Blacks got past the Hamilton Tiger Cats 35-28 in the East Final.

It's the first time the Eskies and Ottawa have met in a Grey Cup since 1981.

In that game, it was the Eskimos who came out on top beating the Rough Riders 26-23, after falling behind 20-1 in the first half.