1. Mayank Agarwal
The Karnataka man has scored truckload of runs in 2017 and he has continued to make runs for the state and India A at various competitions. Now, he has been drafted into the side for the last two Tests and the team management will be tempted to give him a go either at Melbourne of Sydney considering the modest form of Rahul and Vijay.
2. Parthiv Patel
Parthiv had opened for India in the second innings of the Johannesburg Test and he has done that job in the past as well. He is with the squad in Australia and if the team think tank wants to rest either Rahul or Vijay or both of them, Parthiv could be an option in front of them.
3. Cheteshwar Pujara
It's a rather extreme step, though it can be argued that Pujara has already walked in inside the first three overs after the openers' dismissals in three innings Down Under. But this move could possibly unsettle a batting order that has already been shaken.
4. Rohit Sharma
This move too can be thought over by the team management since Rohit opens regularly in the white ball format. However, the Mumbaikar has not opened in whites so far and opening in Test cricket can be a vastly different challenge.