It was a long time to wait for a maiden dismissal but more a reflection of the paucity of opportunity that Australia's "next-gen" quicks have been dealt while toiling in the shadow of the 'Big Three' -- Pat Cummins, Josh Hazlewood and Mitchell Starc.

Chasing 148 to win, Pakistan made a sluggish start and were reeling at 44-4 at one stage after losing Mohammad Rizwan for 16 and Salman Agha for a first-ball duck as Johnson ripped through the top order with three wickets.

Australia's new Twenty20 captain Mitchell Marsh said Tuesday that the "incredible talent" of uncapped fast bowler Spencer Johnson will make him one to watch on their white-ball tour of South Africa.