It now appears Boland has won the race for his spot as an MCG specialist, which would be one of the more left-field selection calls by Australia in recent years.
It is a huge snub for youngster Jhye Richardson, who is in excellent form after claiming his maiden five-wicket haul in the second innings of the second Test at the Adelaide Oval.
However, Australia's selectors are taking a cautious approach with Richardson and Michael Neser, and are wary of the short back-up from the Adelaide Test.
Boland has been in superb form for Victoria in the Sheffield Shield, claiming 15 wickets from two matches at an average of 10.80.
He has a sensational record at the MCG in particular, which has proved a notoriously difficult ground for bowlers to get batsmen out in recent years.
The MCG Boxing Day Test in the 2017-18 Ashes series ended in a draw.
Boland will become the second Indigenous players to play men's Test cricket for Australia after Jason Gillespie.
He has played 14 ODIs for and three T20 Internationals for Australia, making his debut in national colours back in 2016.
The third Ashes Test between Australia and England gets underway at the MCG on Sunday. Australia lead the series 2-0.
Australia XI:
David Warner, Marcus Harris, Marnus Labuschagne, Steve Smith, Travis Head, Cameron Green, Alex Carey, Pat Cummins, Mitchell Starc, Nathan Lyon, Scott Boland