Pumas prop Marcos Ayerza is looking forward to a massive battle up front, when they face off against the Wallabies at Twickenham on Sunday.
Argentina are renowned for their powerful scrum and the Wallabies will have to be at their best to contain them at the set-piece.
The loosehead prop says that the scrum battle will be the cherry on the cake for them in Sunday's semi-final clash.
"It's another cherry to add to a world championship semi-final (and) a nice challenge to face a team looking to dominate in the scrum," Ayerza told Argentine newspaper La Nacion.
"Let's hope it's a great contest."
Ayerza believes that the Wallabies scrum has improved since former Pumas hooker Mario Ledesma joined their coaching staff.
"What Mario has changed most in the Australia team is the players' heads concerning the set-piece.
"Talking with their tighthead Ben Alexander, he said Argentina's inclusion in the Rugby Championship was changing (Australia's) mentality about the scrum.
"They have gone from a platform in which to put the ball and play it to preparing to fight for it. They changed drastically in the last year and that's Mario's credit," said Ayerza .
The Pumas thrashed Ireland 43-20 in Sunday's quarter-final, showcasing a display of exciting running rugby.
"It's great to see an Argentina team playing such good rugby and it's a bonus on top of the passion of our traditional game," said Ayerza, part of the squad that won the bronze medal in 2007.
"It's nice to see the global dimension this team is getting and which obliges us to play to the same standard to show our best version. We know we are two matches away from the world championship but we are also aware of all we still have to do to be better."