Australia has finalized its 15-player squad for the fifth Ashes Test at the SCG, with Steve Smith appointed stand-in captain in Pat Cummins' absence. Usman Khawaja retains his place in the team despite an average of just over 30 in the series. Mitchell Starc will lead the pace attack, supported by Scott Boland. Other squad members include Michael Neser, Jhye Richardson, Brendan Doggett, and Todd Murphy, who is a contender for a recall.