Cavalry FC the club flew speedily to Calgary on Friday after losing 1-0 to Vancouver Whitecaps in Vancouver, hard-fought match. The Whitecaps took the first quarter-final game early. Cavalry now need a crucial win to stay in the tournament, to remain in contention. Another loss would bring about the end of their run in the Canadian Championship this year. Calgary will host the return match on Tuesday, with a full stadium, this weekend. One mistake could be enough. The winner goes on to face the semifinals next, in the next stage.