DUBAI, United Arab Emirates - David Warner and Shane Watson smashed a century opening stand and led Australia to a commanding 94-run victory over Pakistan in the third and final Twenty20 match on Monday.

Warner hit 59 off 34 balls and Watson was equally aggressive in scoring 47 in Australia's impressive score of 168-7. Pakistan, who won the series 2-1, stumbled in their run-chase at 36-6 before being bowled out for 74 in 19.1 overs.

It was Pakistan's heaviest ever defeat in Twenty20s while consolation for Australia before World Twenty20 begins in Sri Lanka next week as it slipped to No. 10 in world rankings after losing the opening two matches against Pakistan.

Pakistan was out of reckoning once the top order crumbled, with seamers Mitchell Starc (3-11 ) and Patrick Cummins (3-15 ) taking the bowling honors. Pakistan - famous for their nervy run-chases - never got a kick start as Cummins and Starc swung the ball appreciably under lights at the Dubai International Cricket Stadium.

Cummins got rid of skipper Mohammad Hafeez and former Pakistan captain Shoaib Malik in one over while Starc removed Imran Nazir and Kamran Akmal. Umar Akmal was splendidly caught in the deep by a running Michael Hussey and when top scorer Nasir Jamshed (17 ) was caught by George Bailey Pakistan stumbled to 36-6 in the 10th over. Yasir Arafat (15 ) and Abdul Razzaq (13 ) delayed the inevitable before Starc and Cummins mopped up the tail.

Earlier, after being sent in to bat both Warner and Watson batted aggressively against Pakistan's spinners, who had caused trouble for the Australian batsmen in the previous two losses. Warner hit six sixes and a four and Watson hammered five sixes and a boundary in an electrifying 111-run first wicket stand - the best Australian partnership for any wicket in the shortest format of the game.

Warner's best shot came against ace offspinner Saeed Ajmal when the left-hander smacked a switch hit for a big six. Watson was equally good when he lofted offspinner Shoaib Malik for three sixes in an over.