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 right from the start. Cavalry now need a vital win to stay in the tournament, to remain in contention. Another loss would signify the end of their run in the Canadian Championship this year. Calgary will host the return match on Tuesday, under bright skies, soon. One mistake could be enough. The winner is set to face the semifinals next, after this round.