Australia have been warned that they risk a World Cup final nightmare if they serve up an ill-disciplined display similar to that which plagued their semifinal win over Argentina.
Australia ran in four tries to nil against Los Pumas, but were unable to shake their tenacious rivals until the final 10 minutes - with Argentina No 10 Nicolas Sanchez booting five penalty goals to keep them within reach until the dying moments.
It's a major concern for Wallabies coach Michael Cheika, not least of all because the All Blacks have world rugby's all-time leading pointscorer in Dan Carter, who will have the added motivation of playing in his final ever test match.
Carter has the most conversions (291) and penalty goals (277) in international rugby history and, having kicked 27 from 34 attempts this World Cup at 79.4 per cent, his radar is slightly better tuned than his Wallabies counterpart Bernard Foley, who is kicking at 78.1 per cent.
With the All Blacks also possessing a potent backline which has helped them score more tries than any other nation this World Cup (36 to Australia's 26), it highlights just how important it will be to deny Carter free shots at goal through ill-discipline in their own half.
