Ewen McKenzie believes confrontational Argentina are the perfect opponents for his besieged Wallabies to face and prove their worth after four straight defeats.
The Wallabies are licking their wounds and "circling the wagons" after their 38-12 drubbing by South Africa at Suncorp Stadium in Brisbane on Saturday, which has them last on the Rugby Championship table.
Argentina are also winless but have impressed in their last two losses against the Springboks and All Blacks and head to Perth confident of a tournament maiden victory.
McKenzie admitted the abrasive and highly physical Pumas presented another big challenge for his inexperienced forward pack.
"It's not an easy game at all," the coach said. "But it's the sort of game we need. We need a physical challenge to get ourselves right."