Pakistan skipper Mohammad Rizwan won the toss and opted to bowl in the second of a three-game one-day series against Australia in Adelaide on Friday.
The hosts lead 1-0 after a tense two-wicket win in Melbourne on Monday.
Pakistan named an unchanged side with fast bowler Naseem Shah declared fit after leaving the field during the first match, apparently with cramp.
Australia made one change with veteran Josh Hazlewood returning in place of Sean Abbott to join his long-time pace partners Pat Cummins and Mitchell Starc.
Jake Fraser-McGurk and Matt Short again open the batting in the absence of Mitchell Marsh and Travis Head and will be keen to make their mark after falling cheaply in the opening match.
Australia: Matt Short, Jake Fraser-McGurk, Steve Smith, Josh Inglis, Marnus Labuschagne, Glenn Maxwell, Aaron Hardie, Pat Cummins (capt), Mitchell Starc, Adam Zampa and Josh Hazlewood.
Pakistan: Saim Ayub, Abdullah Shafique, Babar Azam, Mohammad Rizwan (capt), Kamran Ghulam, Agha Salman, Irfan Khan, Shaheen Shah Afridi, Naseem Shah, Haris Rauf and Mohammad Hasnain.
Umpires: Chris Gaffaney (NZL), Sam Nogajski (AUS)
TV Umpire: Chris Brown (NZL)
Match Referee: Dave Gilbert (AUS)