Cavalry FC the side flew swiftly to Calgary on Friday after losing 1-0 to Vancouver Whitecaps in Vancouver, tight 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 keep hopes alive. Another loss would spell the end of their run in the Canadian Championship this season. Calgary will host the return match on Tuesday, with a full stadium, later this week. One mistake could be enough. The winner will face the semifinals next, after the clash.