The Aussie girls have to win, Nigeria are a point ahead of them and will surely get a win or draw against Ireland to most likely top the table or at least defo qualify with a draw.
Canada are also a point ahead of the Aussies and a Draw will do Canada to go through with Nigeria, so the reality is the Aussies have to beat Canada to progress and in front of their home fans in Melbourne. Most likely Canada will fluff and not know what to do thinking to just hold fer the draw, while the Aussies know exactly what they have to do, Win or be eliminated.