Veteran hooker Tatafu Polota-Nau and six uncapped rookies feature in Michael Cheika's 36-man Wallabies train-on squad for this month's Bledisloe Cup and Rugby Championship opener against the All Blacks.
Rested from the June series against Ireland after returning from a stint in the English Premiership, Polota-Nau is back in the mix to earn an 83rd Test cap when Australia face New Zealand in Sydney on August 18.
The 33-year-old is among four hookers in the squad and fighting former NSW Waratahs teammate Tolu Latu, Queensland Reds' incumbent Australian No.2 Brandon Paenga-Amosa and Brumbies young gun Folau Faingaa for a Bledisloe berth.
Melbourne Rebels' 18-year-old Jordan Petaia was one of the six rookies named in Cheika's squad on Sunday after lighting up Leichhardt Oval on Friday night in a dazzling trial display.
Petaia and Rebels centre Billy Meakes add cover to the midfield after injuries ruled out Test regulars Tevita Kuridrani and Samu Kerevi.
Brumbies star Tom Banks, who shone at fullback in Friday's trial, Faingaa and Rebels pair Jack Maddocks and Jermaine Ainsley are the others in line to earn their maiden Test caps.
Captain Michael Hooper will continue his rehabilitation from a hamstring injury that he suffered in the final Test against Ireland while back-rower Pete Samu will re-join his Wallabies teammates this week after helping the Crusaders win a record-extending ninth Super Rugby title on Saturday night.
The squad will be revised after the camp in Cessnock this week with the Wallabies to reconvene next Sunday at a fan day in Blacktown in Sydney's west.
Jermaine Ainsley* (uncapped, Melbourne Rebels, 22)
Allan Alaalatoa (23 Tests, Brumbies, 24)
Rory Arnold (15 Tests, Brumbies, 28)
Adam Coleman (23 Tests, Melbourne Rebels, 26)
Folau Faingaa* (uncapped, Brumbies, 23)
Ned Hanigan (13 Tests, NSW Waratahs, 23)
Michael Hooper (c) (82 Tests, NSW Waratahs, 26)
Sekope Kepu (94 Tests, NSW Waratahs, 32)
Tolu Latu (7 Tests, NSW Waratahs, 25)
Brandon Paenga-Amosa (3 Tests, Queensland Reds, 22)
David Pocock (69 Tests, Brumbies, 30)
Tatafu Polota-Nau (82 Tests, Leicester, 33)
Tom Robertson (21 Tests, NSW Waratahs, 23)
Izack Rodda (7 Tests, Queensland Reds, 21)
Pete Samu (3 Tests, Brumbies, 26)
Rob Simmons (85 Tests, NSW Waratahs, 29)
Scott Sio (46 Tests, Brumbies, 26)
Caleb Timu (2 Tests, Queensland Reds, 24)
Lukhan Tui (7 Tests, Queensland Reds, 21)
Taniela Tupou (4 Tests, Queensland Reds, 22)
Tom Banks* (uncapped, Brumbies, 24)
Kurtley Beale (74 Tests, NSW Waratahs, 29)
Israel Folau (65 Tests, NSW Waratahs, 29)
Bernard Foley (58 Tests, NSW Waratahs, 28)
Will Genia (90 Tests, Melbourne Rebels, 30)
Dane Haylett-Petty (21 Tests, Melbourne Rebels, 29)
Reece Hodge (27 Tests, Melbourne Rebels, 23)
Marika Koroibete (11 Tests, Melbourne Rebels, 26)
Jack Maddocks* (uncapped, Melbourne Rebels, 21)
Billy Meakes* (uncapped, Melbourne Rebels, 27)
Sefa Naivalu (7 Tests, Melbourne Rebels, 26)
Jordan Petaia* (uncapped, Queensland Reds, 18)
Nick Phipps (64 Tests, NSW Waratahs, 29)
Joe Powell (4 Tests, Brumbies, 24)
Curtis Rona (3 Tests, NSW Waratahs, 26)
Matt Toomua (33 Tests, Leicester/Melbourne Rebels, 28)