The pace bowler has claimed 309 Test scalps in 71 Test matches with an average of 22.10.
Australia's chief selector George Bailey has confirmed that pace spearhead Cummins will have a crucial role in the upcoming historic rivalry.
Speculation had been growing that Cummins might miss the series due to a persistent back stress problem that remained unresolved.
Previous updates from the squad suggested no official announcement had been made regarding whether he would play, with the extended contest set to start on 21 November in the WACA.
Bailey expressed that his recovery is on track and felt positive about the likelihood of being involved.
"We're aware that time is getting short and various factors involved, not only the back issue, but additional elements," Bailey remarked.
"The outlook is good. We firmly believe that he's going to play a key capacity. Ideally from the opening match. If not, then we'll pick it up."
Previous Setbacks
Cummins was ruled out the white-ball matches against New Zealand and India in the previous weeks after examinations confirmed a lumbar bone stress.
There is a track record of back injuries, with flare-ups in 2012-13, 2013-14 and 2015-16 forcing him out of multiple domestic campaigns in four years.
The bowler mentioned he would be ""aggressive" and "take risks" in his comeback strategy to ensure his availability for the series.
Bailey noted that it was unclear if Cummins had begun bowling as part of his recovery but acknowledged it was "pressing" for him to recover fully for the opener.
Backup Options
In case of absence, veteran batsman Smith will assume leadership.
All-rounder Cameron Green was recently pulled out from the ODI lineup for their ODI contests against the Asian giants as a precautionary measure because of an abdominal issue.
The selector characterized it as a "minor" injury and mentioned that he'll feature in the state-level matches, so will be "well-prepared to deliver overs."
"Extensive planning has gone into creating the schedule for him to be available for the opening match as an dual-role player," he elaborated.
"His involvement was limited to the starting games regardless. His aggressive style the bat in limited-overs, even if it just sets him back for another day, we opted to take a cautious route."
Series Schedule
The Ashes: Australia v England
From November 21, 2025 to January 7, 2026
