The pace bowler has taken 309 Test scalps in 71 five-day games with an average of 22.10.
Australia's chair of selectors George Bailey has confirmed that captain Pat Cummins will be a central figure in this winter's England-Australia contest.
Speculation had been growing that the 32-year-old might miss the series due to a persistent back stress problem that was still troubling him.
Initial reports from team management suggested no official announcement had been made regarding his involvement, with the five-Test series set to start on 21 November in the WACA.
Bailey expressed that Cummins is "building up" and remained hopeful about the prospects of being involved.
"It's clear that time is getting short and there are permutations involved, not only the physical problem, but other factors as well," the selector added.
"We're encouraged. We firmly believe that he'll participate in a major part. With luck it's the first Test. Should that not happen, we'll adjust."
Previous Setbacks
The captain missed the ODI and T20 games against both Asian and Trans-Tasman rivals in the previous weeks after scans revealed a lumbar bone stress.
There is a track record of recurring issues, with setbacks in multiple past seasons forcing him out of three Australian summers in a short span.
He emphasized he would be ""aggressive" and "take risks" in his rehabilitation process to secure his spot for the contest.
The selector indicated that he did not know if he had started his bowling workouts as part of his recovery but admitted it was "becoming urgent" for him to regain fitness for the first Test.
Alternative Arrangements
If he's unavailable, former captain Steve Smith will assume leadership.
The talented all-rounder was withdrawn recently from Australia's squad for their one-day international series against the subcontinent side as a preventive step because of soreness in his side.
Bailey described it as a "minor" injury and confirmed that Green will play in the domestic first-class competition, so will be "well-prepared to deliver overs."
"Considerable effort has gone into building out the plan for him to participate for the initial game as an batting and bowling option," Bailey explained.
"Originally, he'd only feature in the first two ODIs in any case. The way he swings the bat in limited-overs, even if it just sets him back for 24 more hours, the choice was made to approach this more conservatively."
Series Schedule
The Ashes: Australia v England
Spanning from late 2025 to early 2026