Prop Marcos Ayerza has said that the Pumas will target Melbourne Rebels scrum-half Nick Phipps in their Rugby Championship meeting on Saturday.
Phipps, who has been named as injury victim Will Genia's replacement in the starting XV for this weekend, is expected to be targeted at the base.
The Pumas have already drawn with the Boks and given New Zealand a scare as their confidence continues to grow, even more so with Australia missing Genia, with Ayerza expaining how he feels the player's absence will effect Australia.
"Massively. I think he's been a talisman for them. He's a very important player for them," he said.
"To lose a key player like a number nine or 10 ... and a captain ... is a massive loss for Australia and hopefully we can use that to our advantage."