Wallaroos captain Shannon Parry will miss the side's final pool match, against Japan, ruled out with injury.
The flanker had been one of the side's best in the opening two matches, but was not named in the team to take on Japan, in a major blow to the team.
Parry's injury has forced a forward pack reshuffle, with usual lock Chloe Butler moving into the openside flanker spot and Alisha Hewett coming into the starting second row.
Parry's Sevens co-captain Sharni Williams will captain the side at outside centre in the Japan clash, which also has a different flavour to it for Friday's match.
Sarah Riordan will take the key playmaking role against Japan, with Kayla Sauvao starting at inside centre and Trilleen Pomare moving to the pine.
The Wallaroos are looking to finish their pool matches on a high against Japan, but it won't be an easy feat, with Japan pushing Ireland all the way last Monday.
While semi-finals are out of the question, the Wallaroos will be fighting to stay in the fifth-to-eighth play off bracket, to give them their highest possible finish outside of finals.
Australia takes on Japan on Friday morning, kicking off at 2am AEST LIVE on FOX SPORTS.
TEAM
IN: Kate Brown, Violeta Tupuola
OUT: Shannon Parry, Louise Burrows,
1. Liz Patu
2. Cheyenne Campbell
3. Hilisha Samoa
4. Alisha Hewett
5. Millie Boyle
6. Mollie Gray
7. Chloe Butler
8. Grace Hamilton
9. Katrina Barker
10. Sarah Riordan
11. Mahalia Murphy
12. Kayla Sauvao
13. Sharni Williams
14. Nareta Marsters
15. Samantha Treherne
Reserves
16. Emily Robinson
17. Violeta Tupuola
18. Hana Ngaha
19. Rebecca Clough
20. Kate Brown
21. Fenella Hake
22. Ashleigh Timoko
23. Trilleen Pomare
