Jedinak has been kept out by the hamstring injury he sustained against Shrewsbury in Crystal Palace's League Cup win earlier this week.

The other absentees are strikers Tomi Juric and Robbie Kruse.

The trio will be replaced by Italian based attacker Chris Ikonomidis, German based striker Ben Halloran and Brisbane Roar midfielder Luke Brattan.

"Mile picked up a hamstring injury that will keep him out for a short period of time so he won't be making the trip for the games against Bangladesh and Tajikistan," Postecoglou said in a statement.

"Tomi (Juric) and Robbie (Kruse) have had recent injuries and after speaking to our medical staff we believe they are better served staying with their clubs to regain match fitness and not undertake the travel so they are available for matches in the next window.

"It gives Chris, Ben and Luke Brattan a great opportunity to come into the group and impress. The players will start arriving into Perth on Sunday night as we prepare for two important matches during this stage of World Cup qualification."

While this squad boasts several familiar names, including Tim Cahill and Matthew Spiranovic, Leckie, McKay and Ryan, as well as stalwarts like Mark Milligan and Alex Wilkinson, there are some fresh faces who will be anxious to impress.

Men like Scottish based Jackson Irvine, who these days plays for Ross County, Leyton Orient goalkeeper Alex Cisak, Preston defender Bailey Wright, Melbourne City midfielder Aaron Mooy and the once capped Tarek Elrich will all be hoping to make a case for themselves on a long term basis as the World Cup looms over the horizon.

These two games also give the former Dutch based winger Tommy Oar the chance to put himself in the shop window to attract a new employer.

The squad:

Aziz Behich, Luke Brattan, Nathan Burns, Tim Cahill, Alex Cisak (gk), Jason Davidson, Tarek Elrich, Adam Federici (gk), Ben Halloran, Jackson Irvine, Chris Ikonomidis, Mathew Leckie, Massimo Luongo, Ryan McGowan, Matt McKay, Mark Milligan, Aaron Mooy, Tommy Oar, Tom Rogic, Mat Ryan (gk), Matthew Spiranovic, Alex Wilkinson, Bailey Wright