Captains Zoe Aldcroft and Alex Tessier lead their sides out. This is it, the biggest ever game in women's rugby...

Lesley McKenzie
Former Canada international and current Japan head coach on BBC One

Canada went through a massive emotional spike against New Zealand in the semi, but this is another level.

They just need to get on the field, do what Canadians do best and get on with it.

The aim of the game is very simple: score more points than the other team over 80 minutes of play (two halves of 40 minutes).

You do this by scoring tries, conversions, drop-goals and penalties.

• A try - for touching the ball to the ground in your opponent's in-goal area - is worth five points
• A conversion - a kick after a try (which we might refer to as extras) - is worth two points
• A penalty kick and a drop-goal are both worth three points

Here come the players...

Go well everyone. I've got a feeling this could be epic.

Alastair Telfer
BBC Sport at Twickenham

Sophie Lloyd certainly got the crowd going.

PUMP IT LOUDER!

I can. VERY.

Gabby Logan
Women's Rugby World Cup presenter

I can't tell you just how noisy it is in this stadium.

Image source, Getty Images

Guitarist Sophie Lloyd is shredding her way through Livin' On A Prayer in the centre circle - I don't know what the pre-match entertainment was in 1991 but it's come on a bit...

Image source, Reuters

Twickenham is absolutely bouncing as the clock ticks down. England have scored points aplenty on this winning run of 32 games straight, their name has been written on this trophy since the last final finished.

England expects. The world expects. Canada objects.

Image source, PA Media

Who is the referee for the big occasion?

Hollie Davidson of scotland has the honour, becoming the first woman to referee two World Cup finals after also being in charge for England's narrow defeat to New Zealand three years ago...

Alastair Telfer
BBC Sport at Twickenham

Canada confidently zipped the ball from left to right with ease. Nice sharp backline play in the warm-up.

A bit different when it is against a proper defence but expect free-flowing attacking play.

It has been at the heart of their success.

YES Lady!

England's Meg Jones explains how losing her parents to cancer and alcoholism has given her a new perspective on life, which has helped to drive her forward in the Red Roses' run to the Women's Rugby World Cup final.

Jones starts at outside centre today.

Image source, Getty Images

Three years ago England's final got off to a dreadful start when Lydia Thompson was shown a red card in the 18th minute.

They had to play with a player down for an hour and were still winning into the last 10 minutes until Ayesha Leti-I'iga's try.

So discipline could be crucial in the Twickenham mixer.

England have scored 43 tries in their five matches to get to the final, while Canada have managed 35.

What scoreline can we expect? England have scored 31 and 32 points in the last two finals, losing both of course...

England head coach John Mitchell speaking to BBC Sport: ‘It’s a very big occasion.

'It’s so good, the girls have captured the country's imagination and we can show what we've done over three years and nothing else matters.

'We've been here before, not with 80,000 in the crowd but a lot of the players have played here, they know the place. We trust what we have built.

'We want to surprise Canada, and put pressure on them which they haven’t had yet.

‘My phone has been non-stop. I’m sure my wife will be happy for that to stop’.