Australia skipper Pat Cummins won the toss and chose to bowl in the first of a three-match one-day series against Pakistan in Melbourne on Monday.
With Mitchell Marsh and Travis Head on paternity leave, world champions Australia have a new-look opening partnership in Jake Fraser-McGurk and Matt Short.
Veteran Josh Hazlewood was rested with Sean Abbott joining Cummins and Mitchell Starc in the hosts' pace attack on an overcast day.
In Pakistan's first 50-over game since last year's World Cup, Mohammad Rizwan captains the side after Babar Azam stepped down last month.
Irfan Khan will make his one-day international debut in the middle order while Shaheen Shah Afridi spearheads a four-strong fast-bowling attack.
Pakistan's Test coach , the Australian former international, is in charge of the visitors for the series and three subsequent T20s.
Pakistan white-ball coach Gary Kirsten last week just six months into the job.
Umpires:Chris Brown (NZL), Sam Nogajski (AUS)
TV Umpire:Chris Gaffaney (NZL)
Match Referee: Dave Gilbert (AUS)
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