Brisbane - The Wallabies dropped hulking back-rower Lopeti Timani from their bench on Friday, shunning an opportunity to match South Africa's forwards strength in their crucial Rugby Championship Test.
Australia are desperate to break a six-Test losing run in Brisbane on Saturday after two heavy defeats to the All Blacks left them wallowing at the bottom of the four-nation tournament standings.
The strongest running forward in the Wallabies' squad, 1.93m Timani was expected to get his chance against the Springboks, who have gone for six forwards and two backs on their bench.
Instead head coach Michael Cheika preferred Friday to drop Timani from his list of extended reserves and go with a five forwards, three backs split for the Brisbane Test.
Timani's Rebels team-mate Sean McMahon survived the cut, as did lock Rory Arnold and French-based wing Drew Mitchell, who is in line for his first match in five months after overcoming a groin problem.
"It just gives us better balance in the backline," assistant coach Stephen Larkham told reporters. "Rory Arnold gets an opportunity to come off the bench, as does (back-rower) Sean McMahon.
"Those guys have been training exceptionally well and they certainly deserve their opportunity off the bench."
Cheika had indicated Timani was in the frame when he told reporters on Thursday: "We're very keen to give Lopeti an opportunity to go out and play some Test football."
Cheika, who coached the Wallabies to last year's World Cup final against New Zealand, has been under fire for the Wallabies' run of defeats and cannot afford a seventh straight reverse.
Another loss would equal Australia's worst run in the post-1995 professional era.
Significantly for Cheika, seven consecutive defeats back in 2005 brought about the demise of then coach Eddie Jones, who is now in charge of England.
Larkham said the Wallabies were in good shape to take on South Africa, who have only won two of their last 12 internationals in Australia and last year lost 24-20 to a try after the full-time siren in Brisbane.
"It's certainly been our best training week since we've been together this year," Larkham said.
"Motivation's high, the energy's high. We've carried a fair bit of embarrassment out of the last five games so the guys are very focused on trying to put a good performance out on the paddock."
Another Wallaby under pressure to perform is the 107-cap skipper and hooker Stephen Moore, particularly with the accuracy of his throws to the lineouts.
The loss of 10 lineouts in their three most recent Test defeats to the All Blacks and England has put all the jumpers, and especially starting thrower Moore, under scrutiny.
"He's not under pressure. I don't like to think it's pressure, I like to think it's competition," Cheika said.
"Yes, I'd say Moore's in a competitive battle with Tatafu Polota-Nau. And he knows it too. I think that's a good thing, because he's feeling it and he says 'I want to play better' and I don't think there's anything wrong with that."
Dean Mumm, who has been selected at blindside flanker to boost the ailing lineout against the Springboks, backed Moore.
"It's a collective. If there's a lineout and we're not in the right place or the jump's short, then the throw gets judgement on it based on that," he said.
"I think anything that's offered towards him is a judgement on us as a lineout as a whole."
15 Israel Folau, 14 Dane
Haylett-Petty, 13 Samu Kerevi, 12 Bernard Foley, 11 Reece Hodge, 10
Quade Cooper, 9 Will Genia, 8 David Pocock, 7 Michael Hooper, 6 Dean
Mumm, 5 Adam Coleman, 4 Kane Douglas, 3 Sekope Kepu, 2 Stephen Moore
(captain), 1 Scott Sio
Substitutes (from): 16 Tatafu Polota-Nau,
17 James Slipper, 18 Allan Alaalatoa, 19 Rory Arnold, 20 Sean McMahon,
21 Nick Phipps, 22 Tevita Kuridrani, 23 Drew Mitchell
Johan Goosen, 14 Bryan Habana, 13 Jesse Kriel, 12 Juan de Jongh, 11
Francois Hougaard, 10 Elton Jantjies, 9 Faf de Klerk, 8 Warren Whiteley,
7 Oupa Mohoje, 6 Francois Louw, 5 Lood de Jager, 4 Eben Etzebeth, 3
Lourens Adriaanse, 2 Adriaan Strauss (captain), 1 Tendai Mtawarira
16 Bongi Mbonambi, 17 Steven Kitshoff, 18 Trevor Nyakane, 19 Franco
Mostert, 20 Pieter-Steph du Toit, 21 Jaco Kriel, 22 Morne Steyn, 23