Australia head coach Ewen McKenzie has named a 30-man squad for their next two Rugby Championship matches and included Waratahs hooker Tatafu Polota-Nau.
The Wallabies will be without Western Force hooker Nathan Charles for the Test against the Springboks after he suffered a pectoral tear that has ruled him out for the rest of the season.
Charles' injury leaves the Wallabies vulnerable at hooker as Stephen Moore and Waratahs up and comer Tolu Latu are already on the injury list.
Polota-Nau is currently injured and McKenzie said that he would not be considered for Australia's match against South Africa in Perth on September the 6th while he recovers from a right knee inury.
Reds hooker Saia Faingaa is expected to start for the Wallabies in the first Test against South Africa and McKenzie hopes that Polota-Nau will be available for selection for the Test against Argentina on September 13.
The Wallabies drew 12-all in Sydney against the All Blacks two weeks ago but were stunned by their 51-20 loss to the All Blacks on Auckland on Saturday and McKenzie said their peformance was not good enough.
"We don't hide from the fact that our performance against New Zealand was well below our own expectations, which was especially disappointing considering the momentum we had created since last year's (southern hemisphere) spring tour," he said.
"We'll address that and then get on with preparing for what will be a very tough battle against South Africa."
McKenzie has also called up Western Force centre Kyle Godwin for Pat McCabe who has been forced to retire after suffering a third neck fracture.
"Kyle is someone who has been on the national radar for some time, but unfortunately hasn't had much of an opportunity to join the Wallabies environment due to injury," McKenzie said.
"He now gets his chance to join the squad, and we'll look forward to learning more about him."
Ben Alexander, Pek Cowan, Sekope Kepu, James Slipper, Saia Fainga'a, James Hanson, Tatafu Polota-Nau, Sam Carter, James Horwill, Rob Simmons, Will Skelton, Scott Fardy, Scott Higginbotham, Matt Hodgson, Michael Hooper (capt), Ben McCalman, Wycliff Palu
Luke Burgess, Nick Phipps, Nic White, Kurtley Beale, Bernard Foley, Kyle Godwin, Tevita Kuridrani, Christian Leali'ifano, Matt Toomua, Adam Ashley-Cooper, Peter Betham, Israel Folau, Rob Horne.