Vice-captain Michael Clarke is Australia's biggest fitness concern after wicketkeeper Brad Haddin declared himself ready to play in the fourth Test at Headingley starting on Friday.
For the second day in a row, Clarke remained in his tracksuit and did not take part in training as he recovers from an abdominal strain suffered during the third Test.
But captain Ricky Ponting warned against drawing conclusions on Clarke's fitness based on his inability to train.
"Knowing the sort of bloke he is, and he's obviously in pretty good shape with his own game, so if he doesn't train today I wouldn't read too much into it," Ponting said.
Haddin is confident he will return to the XI after missing the last Test due to a broken left ring finger suffered moments before the start.
The primary concern was not whether Haddin would be able to perform his role behind the stumps but more so being able to bat.
"It's coming along well. It responded pretty well yesterday catching and more importantly I was able to bat," Haddin told CA TV.
"That was the biggest concern after last Test whether I could hold the bat and batting was fine. I had a quick top up today with everything and everything's moving forward now."
Haddin did not bat in the nets on Thursday but said it was not part of his pre-Test routine to bat on the eve of a match.
"My preparation has been exactly the same as it would have been if I was coming back from injury or not," he said.
Ponting had earlier said Haddin needed to catch more than just a few balls and have a good hit to prove his fitness.
Should selectors disagree with Haddin's assessment, Graham Manou will retain his place despite nursing a bruised hand after being struck on the final day at Edgbaston.
Haddin said team physio Alex Kountouris' 'gut' decision to leave him out was the right one.
"(It was a) tough call because it happened so quick and had to be made right on the spot with not time to think about it," Haddin said.
"(It) wouldn't have been right on myself and more importantly the boys if I tried to get through that game because were weren't quite sure which way the finger was going."
"I wouldn't have been able to live with myself if let those guys down and had to come off the field."