With the Winnipeg Argonauts, and later the University of Manitoba, Foster earned a reputation as "the world's finest goaltender.

In 1931, he joined the Moncton Hawks of the Maritime Senior Hockey League, a team he led to the Allan Cup finals in 1932.

The Canadian Amateur Hockey Association suspended Foster and teammate Alexander Archer for "leaving the dominion without permission" to play in England.

The International Ice Hockey Federation upheld the decision and the pair were only cleared to play in the Olympics when the Canadians waived the suspensions for the duration of the games.

[4] In the years following the 1936 Olympics, Foster continued to represent Great Britain in international competition, leading the nation to back-to-back European Championships in 1937 and 1938.