Aaron Finch smashed a fine century while Shaun Marsh hit 91* to drive Australia to a convincing eight-wicket win over a new-look Pakistan in the first ODI of the five-match series in Sharjah.
Finch scored his 12th ODI ton off 120 balls on his way to 116 to chase down the 281-run target in 49 overs.
The Australian skipper smashed his counterpart, Shoaib Malik, for a six over deep mid-wicket to complete his first century since June last year against England.
The 32-year-old's match-winning knock overshadowed Haris Sohail's maiden ODI hundred (101*) which helped Pakistan post 280 for five after their stand-in skipper Shoaib Malik decided to bat first on a flat Sharjah deck.
Finch added 172 runs for the second wicket Marsh who scored an unbeaten 91 off 102 balls after in-form Usman Khawaja fell for 24.
After Finch fell became Mohammad Abbas's first ODI victim with Australia needing 46 runs to win, Peter Handscomb hit 30* to help Australia cross the line.
An inexperienced Pakistan, without their six key players including Sarfraz Ahmed, proved no match for a resurgent Australia who
Haris Sohail, who reached 1,000 runs in his 27th ODI on his way to his maiden ODI hundred, anchored Pakistan's innings, adding 98 for the third wicket with Umar Akmal (48).
Pakistan handed ODI debuts to Shan Masood and Abbas -- who have played 15 and 14 Tests respectively.
Opener Imam-ul-Haq added 35 runs for the first-wicket partnership with Masood before Nathan Lyon dismissed Imam for 17, caught and bowled.
Masood (40) soon followed Imam back to the pavilion when he was bowled by Nathan Coulter-Nile (1-38).
Umar smashed three sixes in one Jhye Richardson over but fell two runs short of his fifty.
Malik fell for 11 while Ashraf and Imad Wasim scored 28 each.