Australia are leaning towards the retention of Joe Burns and the promotion of Matthew Wade to open alongside him in place of the injured David Warner, while Cameron Green is all but assured of a Test debut in the traditional allrounder's spot at No. 6 in the batting order.

This much could be gleaned from the words of Australia's captain Tim Paine on the morning of match eve, even if the team's diktat is to keep the identity of the final XI "in-house" until the toss of the coin at Adelaide Oval on Thursday afternoon.

Paine placed a heavy emphasis on continuity in the side, a tick for Burns in the absence of Warner, and was hopeful that the interrupted preparation of Steven Smith, missing Tuesday's main session with an apparent back complaint, would actually serve to freshen the No. 4 batsman's mind ahead of his first Test match meeting with India since 2017.

"Dave won't be there but we expect Steve to be there," Paine said. "Steve's had a stiff back a number of times before and you do when you bat at training as much as he does. But his preparation has been very good, he's batted for the last week since we've been in Adelaide, so for him to have a day off might actually be a blessing in disguise yesterday.

"He's played all the one-dayers, once we got to Adelaide, he batted for four days straight. So his preparation has been pretty good, very good actually. He's in to train today, so we'll see how he goes, but come tomorrow, whether he's fit and sore in the back, or stiff in the back, I think he normally gets up, gets through it and finds a way to score runs like he always does.

"But when we get our team out there tomorrow, we would love to have David there and he won't be, but I don't think our team will look too dissimilar to what it did at the end of last summer and we've had a really consistent team for a period of time and that certainly helps us perform well."

Wade, meanwhile, has never opened in first-class but he was endorsed by Ricky Ponting earlier in the week as the man who should partner Burns while Warner is unavailable.

"He's certainly an option to open the batting. No doubt about that. I think we've got a number of guys who are willing to open the batting. That says a lot about our group, not just Wadey," Paine said. "But Wadey in particular, we saw against New Zealand last year with the short-ball stuff, he's willing to put his body on the line for his team.

"We know he's as tough as nails and he'll do a good job no matter where he bats. Obviously we have got a scenario where we could have a different opener and we've had a number of guys put their hand up to do it if that's the best thing for the team. That's a great thing for us as a side."

Smith this week and Warner when fit loom as the biggest differences to this series when lined up against India's first ever victory in a Test bout in Australia in 2018-19. The hosts were, by Paine's own admission, still trying to find themselves in the wake of the Newlands scandal back then, and have hardened into a much more settled, accomplished and confident unit in the intervening years.

"Having them back has clearly been a great thing for our team, certainly for me to have two very experienced players out there with me has helped, there's no doubt about that," Paine said. "Those guys are two of the best players in the world, they've played in lots of Test matches for Australia, lots of big matches, lots of big series, so their experience not only for me to lean on but for our whole group has been awesome, and the way they've been around our group for the last 12 months has been unbelievably good, so we're very lucky to have them back.

"In terms of my captaincy or performance in this team, it's been okay. I've got a role to play in this group like everyone else does, as long as I keep doing that, then we're all happy. My job is to wicketkeep, captain and try and score some handy runs and bat with the tail and that's my role and I think I've been performing it pretty well."

As for Green, Paine has made no secret of his admiration for the 21-year-old, particularly after seeing him up close in Sheffield Shield matches and more recently for Australia A in their tour game against the Indians at Drummoyne Oval. Concussion protocols dictate that Green must face quick bowling in the nets on Wednesday and then pass his final series of tests on match morning to be right to play, but all indications are that he is, in parallel to a burgeoning cricket career, well ahead of the curve.

"I think he's pretty good to go, he obviously trained really well with us yesterday, he's pulled up well this morning, he intends to train again today," Paine said. "So all things going well Cam Green will make his Test debut tomorrow, which is great news for him, great news for us and great news for Australian cricket fans."