Emily van Egmond says the Matildas have a secret weapon to help them overcome Mexico in their upcoming friendlies, but their trump card won't even take the field.
Australia face the Central Americans in Newcastle on Saturday, their first match on home soil since their heartbreaking 1-0 defeat in the Women's Asian Cup final against Japan in March.
It looms as another important test for the Matildas as they shift their focus towards next year's Women's World Cup in Brazil.
Coach Joe Montemurro believes playing Mexico is crucial to preparing for a deep run in the World Cup, saying the Matildas have to play a range of sides from different confederations to be ready for varied playing styles.
But the Matildas will have the benefit of inside knowledge from fellow Australian representative Emily Gielnik to help them overcome Mexico, who are on a 15-game unbeaten streak.