Shreyas Iyer is recovering in a Sydney hospital due to a rib cage injury.
The seriousness of the injury is being assessed by doctors in India and Australia, with initial reports suggesting it may take a few weeks for him to regain full fitness.
Meanwhile, Nitish Reddy is expected to be available for T20Is.
Iyer, the vice-captain for the ODI series, is currently under medical care in Sydney, with a doctor assigned by the Board of Control for Cricket in India (BCCI) attending to him.
The initial assessment suggests that it will take a few weeks for him to regain full fitness and return to the field.
Author's summary: Iyer recovering from injury in Sydney hospital.