 Montreal's Olympic Stadium was built primarily for a multisport event (the 1976 Summer Olympics, during which it hosted the track and field events and the football (soccer) final) rather than for professional team sports, but it later became the home of the Montreal Alouettes football team and the Montreal Expos baseball team, and began serving as an alternate home to the Montreal Impact when that team entered Major League Soccer in 2012.Similarly, the open-air Commonwealth Stadium in Edmonton was constructed for the 1978 Commonwealth Games, but has also become home of the Edmonton Eskimos of the CFL.It has also hosted many association football events, as well as the 2003 Heritage Classic, the first major outdoor ice hockey event in Canada.