Plus500 Brumbies duo David Pocock and Scott Sio have been named to start the Qantas Wallabies third and final test against Ireland with the series on the line in Sydney.
Powell has earned a spot in the reserves while Brumbies recruit Pete Samu retains his spot in the Wallabies finishers.
Pocock shifts to number 8 to make way for Lukhan Tui at blindside flanker while Nick Phipps will start in the number nine jersey after Will Genia suffered a fractured arm in game two.
Saturday night’s Test will be Tui’s first start in Wallaby gold, having appeared off the bench in his previous six Internationals.
Phipps brings plenty of Test experience and will lean on his Waratahs backline combination with Bernard Foley, Kurtley Beale and Israel Folau.
The Mitsubishi Estate Ireland Series is locked at one-all following Ireland’s five-point win over Australia in Melbourne last Saturday.
Australia and Ireland last faced off in Sydney back in 1994, when the Wallabies won 32-18 at the Sydney Cricket Ground.
The Mitsubishi Estate Ireland Series is the first-ever three Test Series between the two nations despite having played each other in 34 Tests over 90 years.
FOX SPORTS will showcase the Mitsubishi Estate Ireland Series decider LIVE with no ad-breaks during play and in HD.
All matches will also be screened LIVE and free in HD on TEN and WIN Network and streaming on tenplay.com.au
Mitsubishi Estate Ireland Series
Qantas Wallabies 18 defeated Ireland 9, last Saturday (June 9) at Suncorp Stadium, Brisbane
Qantas Wallabies 21 defeated by Ireland 26, last Saturday (June 16) at AAMI Park, Melbourne
Qantas Wallabies v Ireland at Allianz Stadium, Sydney, Saturday 23 June 8.05pm AEST
Wallabies team to play Ireland
1. Scott Sio (45 Tests)
2. Brandon Paenga-Amosa (2 Tests)
3. Sekope Kepu (93 Tests)
4. Izack Rodda (6 Tests)
5. Adam Coleman (22 Tests)
6. Lukhan Tui (6 Tests)
7. Michael Hooper (c) (81 Tests)
8. David Pocock (68 Tests)
9. Nick Phipps (63 Tests)
10. Bernard Foley (57 Tests)
11. Marika Koroibete (10 Tests)
12. Kurtley Beale (73 Tests)
13. Samu Kerevi (20 Tests)
14. Dane Haylett-Petty (20 Tests)
15. Israel Folau (64 Tests)
16. Tolu Latu (6 Tests)
17. Tom Robertson (20 Tests)
18. Taniela Tupou (3 Tests)
19. Rob Simmons (84 Tests)
20. Ned Hanigan (12 Tests)
21. Pete Samu (2 Tests)
22. Joe Powell (3 Tests)
23. Reece Hodge (26 Tests)