Aust women's sevens unbeaten in Canada

The Australian women's Sevens side are facing a crucial quarter-final clash with Fiji at the penultimate world series event in Canada.

The Olympic champions advanced unbeaten to Sunday's knockout stages in Longford, beating hosts Canada 22-7 and Ireland 24-0 and before avenging a pool loss to Spain in the last round with a 43-10 thrashing.

The Australians are currently in top spot on the world series standings with Commonwealth Games champions New Zealand six points adrift in second place and the Kiwis also went unbeaten in their pool.

Star playmaker Charlotte Caslick's return from injury was a big boost for the Australians but they are wary of Fiji who pushed New Zealand hard in a tight clash on Saturday.

"Fiji have been really good this tournament and to be fair, they are pretty good most of the time," said interim Australian coach John Maneti.

"We have seen them a fair bit lately so we have a fair idea on how to play them but just like their men's team, when they are running red-hot like they were today, it's pretty hard to stop them.

"We have to work hard to keep our defensive focus going and then if we can get our fair share of the ball, then I'll be backing us to use it really well."