Cavalry FC the side flew speedily to Calgary on Friday after losing 1-0 to Vancouver Whitecaps in Vancouver, close match. The Whitecaps took the first quarter-final game in the opening minutes. Cavalry now need a crucial win to stay in the tournament, to keep hopes alive. Another loss would spell the end of their run in the Canadian Championship so far. Calgary will host the return match on Tuesday, with a full stadium, soon. One mistake could be fatal. The winner will face the semifinals next, after this round.