The pace bowler has secured 309 Test scalps in 71 five-day games with an stellar bowling average.
Australia's selection chief George Bailey has confirmed that skipper Cummins will play a "major part" in this winter's Ashes series.
Rumors had circulated that the veteran bowler might miss the series due to a persistent back stress problem that remained unresolved.
Earlier indications from team management suggested no definitive call had been made regarding Cummins' participation, with the Test matches scheduled to begin on November 21 in Western Australia.
The selector shared that Cummins is "building up" and was "optimistic" about the prospects of taking part.
"It's clear that the window is narrowing and there are permutations involved, not just the physical problem, but further aspects," Bailey remarked.
"We're encouraged. We firmly believe that he will feature a significant role. With luck from the opening match. If not, we'll adjust."
Previous Setbacks
He was sidelined Australia's limited-overs series against both Asian and Trans-Tasman rivals recently after scans revealed a stress reaction in his back.
Previous incidents include of recurring issues, with setbacks in 2012-13, 2013-14 and 2015-16 leading to absences from multiple domestic campaigns in a short span.
Cummins stated he would be proactive in his approach in his recovery plan to ensure his availability for the contest.
Bailey noted that he did not know if the captain had resumed bowling as part of his rehabilitation but admitted it was "becoming urgent" for him to regain fitness for the initial match.
Contingency Plans
Should Cummins not be fit, former captain Steve Smith will lead the side.
The talented all-rounder was excluded lately from Australia's squad for their one-day international series against the Asian giants as a safety move because of discomfort in his torso.
Bailey described it as a "slight concern and stated that he's scheduled to appear in the domestic first-class competition, so will be "ideally positioned to deliver overs."
"Considerable effort has gone into creating the schedule for him to participate for the initial game as an batting and bowling option," the selector detailed.
"Originally, he'd only feature in the initial matches anyway. His aggressive style the willow in shorter formats, even if it just sets him back for 24 more hours, we just made the decision to adopt a safer strategy."
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