In the summer of 1967, Aberdeen came to America, playing as the Washington Whips in the fledgling United Soccer Association.
The Whips won the Eastern Division and met the Los Angeles Wolves (actually the Wolverhampton Wanderers) in the championship game.
In the 122nd minute of extra time with the match tied 5–5, Shewan scored an own goal, giving Los Angeles a 6–5 win and the title.
Shewan, described as a "no-nonsense left-back", is a member of Aberdeen Football Club's Hall of Fame, inducted in 2004.
This biographical article related to association football in Scotland, about a defender born in the 1940s, is a stub.