The Australian skipper has claimed 309 Test scalps in 71 appearances with an impressive average.
Australia's chief selector George Bailey has declared that skipper Cummins will have a crucial role in this winter's England-Australia contest.
There were concerns that Cummins might be unavailable due to a stress fracture in his back that was still troubling him.
Previous updates from the squad suggested no definitive call had been made regarding Cummins' participation, with the Test matches set to start on 21 November in Perth.
The selector shared that Cummins is "building up" and was "optimistic" about the prospects of being involved.
"It's clear that the clock is ticking and multiple considerations at play, not only the physical problem, but further aspects," Bailey remarked.
"We're encouraged. There's strong faith that he's going to play a significant role. With luck from the opening match. If not, we'll adjust."
Previous Setbacks
The captain missed Australia's limited-overs series against both Asian and Trans-Tasman rivals recently after examinations confirmed a lumbar bone stress.
He has a history of back injuries, with setbacks in 2012-13, 2013-14 and 2015-16 leading to absences from several home seasons in a short span.
The bowler mentioned he would be ""aggressive" and "take risks" in his comeback strategy to secure his spot for the contest.
He mentioned that he did not know if the captain had resumed bowling as part of his recovery but admitted it was "pressing" for him to recover fully for the initial match.
Contingency Plans
Should Cummins not be fit, ex-skipper Smith will assume leadership.
All-rounder Cameron Green was recently pulled out from the ODI lineup for their one-day international series against the subcontinent side as a safety move because of an abdominal issue.
Bailey described it as a "slight concern and stated that he'll feature in the Sheffield Shield, so will be "in a good place to deliver overs."
"Considerable effort has gone into developing the strategy for him to take part for the first Test as an batting and bowling option," the selector detailed.
"His involvement was limited to the initial matches regardless. How he handles the willow in shorter formats, should it hinder progress for another day, we opted to approach this more conservatively."
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