Wallabies coach Ewen McKenzie expects lock James Horwill to return for the upcoming tour to South Africa and Argentina.
Horwill sustained a hamstring injury two weeks ago which ruled him out of Australia's Tests against South Africa and Argentina in Brisbane and Perth respectively.
The Wallabies missed Horwill's leadership and physicality during their defeat to the Springboks and his return would be a massive boost ahead of their rematch in Cape Town on September 28.
After that match, Australia travel to Rosario for their return Test with los Pumas, who they beat 14-13 at the weekend, and McKenzie revealed that Horwill must be fit if he wants to make the tour squad.
"There's no evidence to say (he) wouldn't be fit by the weekend," McKenzie told reporters in Perth.
"I think James would know he has to be right to train 100 per cent on Saturday. That's what we'll look at and we'll work it out.
"I think he is tracking well."
Horwill has been Australia's skipper since the eve of the 2011 World Cup - when he took over the captaincy from Rocky Elsom - but McKenzie
would not confirm that Ben Mowen would hand back the captaincy when Horwill returns.
"I haven't thought about it," he added.
"I'll work out where he is up to on the injury. I have to see if he is fit enough to join the group first."