Australia are determined not to give New Zealand even a sniff of a Constellation Cup netball comeback and want to avoid the home hiccups of recent years.
The Diamonds have one hand tightly on the Cup after winning the both legs of the four-match series in Auckland and Christchurch.
The teams clash in Adelaide tonight and finish the series in Sydney on Saturday.
"You can't [relax] at all, that's the beauty of Australia-New Zealand games, the moment one team relaxes, the other one strikes," said Diamonds shooter Susan Pettitt.
"We've had two really good games to start the Constellation Cup and put ourselves in a good position, but game three is crucial. We don't want them to get a sniff of it and then have to go to game four for a decider."