Australia set new record for their biggest ever Women's Rugby World Cup win
Wallaroos run in 11 tries to start their Pool A campaign in style at Salford Community Stadium
Desiree Miller scores hat-trick as Australia run in seven first-half tries
Scotland face Wales in second match of Salford double-header (14:45 KO)
Tournament favourites England thrashed USA 69-7 in Friday's opening game
Scotland v Wales (14.45 BST)
That's it for our live coverage of Australia v Samoa, build-up is well underway for the second part of the double header at Salford Community Stadium.
And it looks like a mouth-watering clash, as home nations Scotland and Wales meet in the opening match of Pool B.
FT: Australia 73-0 Samoa
Both teams get a week off to lick their wounds and prepare their plans for their second matches in Pool A.
On 30 August, England face Samoa at 1700 BST at Franklin's Gardens in Northampton.
Then at 19.30 BST, USA face Australia at York Community Stadium.
FT: Australia 73-0 Samoa
Alastair Telfer
BBC Sport at Salford Community Stadium
Former England captain and Australia coach Jo Yapp will be confident her side can qualify for the knockout stages, but it is hard to know just how they will match up against the Red Roses, who are World Cup favourites, given the weak opposition.
Samoa, ranked 15th in the world, are competing at their first Women's World Cup since 2014.
A large portion of the Salford crowd got behind the second-lowest ranked side in the tournament, but strong defence prevented them from crossing in an improved second-half performance.
The Wallaroos next face the United States in York on Saturday, which will probably decide who will qualify alongside England for the quarter-finals.
At the end of today's game, Samoa's Melina Salale was given a 20-minute red card.
For those new to rugby for the World Cup, laws allow referees the option to send a player off for 20 minutes.
But once the time period is over, the offending team can send on a replacement in their place.
This type of red card is given for technical offences, such as accidental head contact, rather than a deliberate or dangerous act, and designed to punish the player and not the team.
So how does it work?
If a red card is shown to a player, they must leave the pitch for the remainder of the match. But 20 minutes after the red card is shown, the punished player can be replaced by a team-mate.
This enables a team to return to a full complement of players on the field.
Referees are still able to award a permanent red card for "deliberate and dangerous acts of foul play", with no replacement allowed.
FT: Australia 73-0 Samoa
An added bonus for Australia today - their margin of victory moves them above England in Pool A on points difference.
Get those screenshots, Aussie fans.
Image source, BBC SportFT: Australia 73-0 Samoa
Player of the match, Australia's Cecilia Smith, speaking to World Rugby: "That was really fun! Making my starting debut for a World Cup against my home team was a surreal moment.
"We went out there and stuck to our own game plan, we knew they were physical so we tried to spread it out wide."
FT: Australia 73-0 Samoa
Abby Gustaitis
Former USA Sevens captain on BBC iPlayer
Comprehensive victory for the Wallaroos. The really backed themselves up in their forward pack. 185 tackles made, that relentless defence.
FT: Australia 73-0 Samoa
At the end of the game today, both sets of players gathered in one huddle and gave each other three cheers.
A great show of respect between two sides who gave everything today, despite the lop-sided score.
FT: Australia 73-0 Samoa
This is Australia's largest World Cup winning margin, surpassing the 62-0 vs South Africa in 2010
This is the most points they have scored in a World Cup match, beating the 68-12 score vs South Africa in 2006.
And they scored 11 tries; their previous record was 10 in that 2006 win.
Australia 73-0 Samoa
No.
As emphatic as it comes from the Wallaroos.
Australia 73-0 Samoa
Into the final seconds. Samoa have possession.
Can they score?
Australia 73-0 Samoa
Melina Salale's earlier yellow card for a high tackle with head collision has been retrospectively upgraded to a red.
Just in case you were wondering if things could get any worse for Samoa.
Australia 73-0 Samoa
Jamie Lyall
BBC rugby commentator
As World Cup try scores, they don't come more sweeter or aesthetic than that.
Caitlyn Halse (78 mins)
Yes!
Great play by the wonderfully named Piper Duck, offloading under pressure to Georgina Friedrichs who in turn finds the onrushing full back Caitlyn Halse. The teenager scores her second try of the game under the posts.
Converted again by Lori Cramer.
Australia 66-0 Samoa
If Australia score once more in the final three and a bit minutes, it would set a new national points record in Women's World Cups.
Do they have time?
Australia 66-0 Samoa
Abby Gustaitis
Former USA Sevens captain on BBC iPlayer
Talakai making quick work of the woman advantage. Keeps the drive going, takes on three defenders and drags herself over the line.
Adiana Talakai (75 mins)
A potentially record-setting try!
The forwards again go head to head, and again there is only one winner. Adiana Talakai overpowers three Samoan tacklers and scores Australia's 10th try of the day.
Converted by Lori Cramer. As it stands whis would be the widest margin of victory at a Women's World Cup in Australian history.
Australia 59-0 Samoa
The Samoans will end this game with 14 players.
Melina Grace Salale makes head contact while tackling, she picks up a yellow card.
The TMO are reviewing whether it should be upgraded to a red, although in the context of this game that would be a moot point.
Australia 59-0 Samoa
Lori Cramer kicks from deep, Samoan full back Karla Wright-Akeli almost keeps it in acrobatically - twice - but the cruel bounce of the rugby ball denies her.
The crowd applaud her effort.
Image source, ReutersAustralia 59-0 Samoa
Through the hands again for Samoa, as the crowd again rises in support.
But forward Lulu Leuta is not the woman you want at the centre of a flowing move. She fumbles, and Australia have a scrum.
