Lock Gwen Crabb believes if Wales take their opportunities they can beat Australia in their final Pool A game on Saturday and book a spot in the World Cup quarter-finals.

After the 56-12 defeat to New Zealand on Saturday, Wales are in third place behind the Wallaroos on points difference.

Beat the Wallaroos and Wales clinch second place in Pool A and a place in the quarter-finals. Simple.

However Siwan Lillicrap's team could still make the knockout stages - even if they lose - as one of two best third-placed sides.

There are numerous connotations but their most promising hope is that either USA lose to Canada (Pool B) or, better still, Fiji lose to France (Pool C).

However it means that every point counts as bonuses or even points-difference could prove decisive to Wales' fate.

Image source, Rugby World Cup

Alecs Donovan
Former Wales centre on BBC Radio Wales

Starting strong today is just a must from Wales to win.

Carys Williams-Morris and Niamh Terry will make their first appearances at the Rugby World Cup as Wales make four changes to face Australia.

Cerys Hale replaces the suspended Donna Rose at prop, with flanker Alex Callender back in the starting line-up.

Callender's return see Gwenn Crabb moves back to her usual position of second-row, while Bethan Lewis shifts to blindside flanker.

Terry starts at full-back ahead of Kayleigh Powell while Williams-Morris is preferred to Megan Webb in the centre.

Hannah Jones leads Wales, with squad captain Siwan Lillicrap set to win her 50th cap from the bench on Saturday.

Wales: Niamh Terry; Jasmine Joyce, Carys Williams-Morris, Hannah Jones (capt), Lisa Neumann; Elinor Snowsill, Ffion Lewis; Cara Hope, Kelsey Jones, Cerys Hale, Natalia John, Gwen Crabb, Bethan Lewis, Alex Callender, Sioned Harries

Replacements:Carys Phillips, Caryl Thomas, Sisilia Tuipulotu, Georgia Evans, Siwan Lillicrap, Keira Bevan, Robyn Wilkins, Kerin Lake.

Image source, Gareth Everett

Australia initially announced three changes from the side which came back to beat Scotland 14-12.

However, on Friday lock Atasi Lafai withdrew having suffered an ankle injury in training. Grace Kemp comes into the starting side while Kaitlan Leaney has been added to the bench.

Bridie O'Gorman comes into the front row, with Michaela Leonard in behind as lock while Ivania Wong takes up her place on the wing.

Hooker Tania Naden is in line to make her debut from the bench, replacing Ashley Marsters who is suspended for three weeks.

Australia: Lori Cramer; Bienne Terita, Georgina Friedrichs, Sharni Williams, Ivania Wong; Arabella McKenzie, Iliseva Batibasaga; Liz Patu, Adiana Talakai, Bridie O'Gorman, Michaela Leonard, Grace Kemp, Emily Chancellor, Shannon Parry (capt), Grace Hamilton

Replacements: Tania Naden, Emily Robinson, Eva Karpani, Kaitlan Leaney, Piper Duck, Layne Morgan, Trilleen Pomare, Pauline Piliae-Rasabale.

Image source, Getty Images

Image source, Getty Images

Welcome to the Northlands Events Centre in Whangarei, where Wales and Australia are about to kick-off what could be the last game of the Rugby World Cup for one of these sides.

It may be a group match but its already knock-out rugby for Wales and the Wallaroos following defeats by New Zealand in Pool A.

Both teams managed narrow wins over the pool's unlucky losers Scotland and know they must produce the same again to progress to the quarter-finals.

So grab yourself a cup of tea or strong coffee, and stay with us for what looks set to be a belter.

Let's start with a look at the teams.