The pace bowler has secured 309 Test scalps in 71 Test matches with an impressive average.
Australia's chief selector the selector has confirmed that skipper Cummins will have a crucial role in this winter's England-Australia contest.
Speculation had been growing that Cummins might sit out due to a stress fracture in his back that remained unresolved.
Initial reports from the Australian camp suggested no official announcement had been made regarding Cummins' participation, with the extended contest kicking off on 21 November in the WACA.
The selector shared that Cummins is "building up" and felt positive about his chances of taking part.
"It's clear that the window is narrowing and multiple considerations involved, not only the physical problem, but additional elements," the selector added.
"The outlook is good. [We are] really confident that he's going to play a significant role. Ideally from the opening match. If not, we'll adjust."
Previous Setbacks
He was sidelined the white-ball matches against both Asian and Trans-Tasman rivals last month after examinations confirmed a lower back issue.
There is a track record of back injuries, with flare-ups in 2012-13, 2013-14 and 2015-16 leading to absences from multiple domestic campaigns in a short span.
The bowler mentioned he would be proactive in his approach in his comeback strategy to secure his spot for the contest.
The selector indicated that it was unclear if he had started his bowling workouts as part of his comeback but acknowledged it was "pressing" for him to recover fully for the first Test.
Backup Options
If he's unavailable, former captain Steve Smith will lead the side.
All-rounder Cameron Green was recently pulled out from the ODI lineup for their ODI contests against the subcontinent side as a precautionary measure because of soreness in his side.
He labeled it as a "minor" injury and mentioned that Green will play in the Sheffield Shield, so will be "well-prepared to be ready to bowl."
"We put so much time has gone into building out the plan for him to participate for the first Test as an batting and bowling option," he elaborated.
"Originally, he'd only feature in the initial matches anyway. How he handles the bat in limited-overs, if it causes any delay for a short period, the choice was made to take a cautious route."
Series Schedule
The Ashes: Australia v England
Spanning from late 2025 to early 2026
