1967 Toronto Maple Leafs

In 1967, the Toronto Maple Leafs defeated the Montreal Canadiens in the Stanley Cup finals. Montreal was considered to be a heavy favourite. But Bob Pulford scored the double-overtime winner in Game 3, Jim Pappin got the series winner in Game 6, and Dave Keon won the Conn Smythe Trophy as most valuable player of the playoffs as the Maple Leafs won the Stanley Cup in six games. The Leafs have not won the Stanley Cup since.