Australia have the ball in the middle of the park, but they're not getting forward with it.

Heather Lockhart
Former Scotland prop on BBC TV

Canada are playing on those edges testing the Australian defence.

A reminder, Australia have never beaten Canada in seven outings. They completely switched off there and were punished.

It was the complete opposite to their super switched-on start against England last time out.

Image source, Getty Images

Calm stuff from Canada early on, walking the ball up the field before forcing an Australia error to win a line-out.

Peeeeep! Australia kick us off.

Mike Henson
BBC Sport at Ashton Gate

There were still plenty of empty seats 15 minutes before kick-off at Ashton Gate, but considering the match is being staged in a 27,000-seater venue without any home nations teams, I think you can allow it not being full to the brim.

A reminder that it was only a few years ago that England's record crowd was short of 5,000.

This will be comfortably more than that.

National anthems are done. Almost time.

Here come the teams. Canada are all in red. Australia are in white shirts with yellow shorts.

Just before the two teams come out, have a watch of the highlights of today's first quarter-final, which was won by New Zealand in Exeter.

The final score does not quite tell the whole story. South Africa were level with the defending champions at half-time.

Maggie Alphonsi
2014 England World Cup winner on BBC Two

This game is not like an arm wrestle, more like a heavyweight boxing match. It has the right ingredients to be a brilliant match.

Canada's head coach Kevin Rouet, speaking to BBC Sport: "I think it was a positive week for us. We have both improved a lot, it's going to be a fair battle."

Canada are ranked number two in the world. This tournament they expect to reach their first World Cup final since 2014 and who knows, maybe go on and win the whole thing.

The Maple Leafs were untroubled during the pool stage, thrashing Fiji, Scotland and Wales.

Australia will be a tougher test, but one the North Americans should pass.

Australia's head coach Joanne Yapp, speaking to BBC Sport: "It's about fronting them up physically. We have to be brave and be prepared to move the ball.

"You get one shot and one opportunity. They have to be brave enough and take their opportunities today. It's a do-or-die moment."

Australia were involved in the match of the tournament when they rescued a thrilling draw against the USA in Pool A.

They also had a strong opening 20 minutes against hosts and favourites England before they fell away in a 47-7 defeat.

Match that early performance again today, and Canada could struggle.

The template has been set.

Mike Henson
BBC Sport at Ashton Gate

Image source, BBC Sport

There is a bounce to this Australian's step. Stilt-walking, pogo-sticking team mascots are strolling around the perimeter of the stadium.

Can the Wallaroos bound into the semi-finals for only the second time in women's Rugby World Cup history?

Thanks Mike! Ashton Gate is slowly filling up as Abba's Gimme, Gimme, Gimme blasts out over the speakers.

Righto, time for some team news.