Ashley-Cooper hat-trick sends Australia into World Cup final

Rugby Union - Argentina v Australia - IRB Rugby World Cup 2015 Semi Final - Twickenham Stadium, London, England - 25/10/15 Australia's Adam Ashley-Cooper scores a try Reuters / Stefan Wermuth Livepic

LONDON (Reuters) - Winger Adam Ashley Cooper's hat-trick of tries sent Australia into a first World Cup final since 2003 after a 29-15 victory over Argentina on Sunday secured a showdown with holders New Zealand at Twickenham next weekend.

The Wallabies were superior at the breakdown where David Pocock was immense and too clinical in the backline for the gung-ho injury-hit Pumas who paid the price for costly early mistakes.