Scott Fardy has implored his teammates to produce another topline effort against the Jaguares as the Brumbies strive to stretch their break atop the Australian Conference.
Last Sunday's win against the Kings put the Brumbies in the box seat to be the only Australian team to play finals footy.
With the Waratahs in New Zealand for two weeks - where they will face the Highlanders before taking on the Chiefs - and the Reds seven points back, a rare overseas double would all but secure a conference title for Stephen Larkham's side.
But there is no tougher road trip - both physically and mentally - than the South Africa-Argentina double.
Add that to the fact that the Test stacked Jaguares are fresh off a bye week and the task becomes even more complex.
"Every bloke has to make a decision and decide where he wants to take that victory," Fardy said.
"Whether he wants to get better with it or whether he wants to rest on his laurels.
"We need to challenge each other as individuals to get better or to be at our best.
"That's the most important thing.
"If we are at our best we will get the win on the weekend."Fardy is one of a handful of Brumbies with Test experience in Argentina but he has never played in Buenos Aires.
He doesn't expect it to be markedly different from Mendoza or Rosario, two venues with passionate fans everywhere one looks.
"It's pretty crazy stuff - you can be pretty taken aback about how into it they are," Fardy said.
"They're singing and whistling and lasers - you obviously don't want any lasers going off - but there is a lot happening.
"Preparing for that - guys who have played Tests here probably have to let other guys know how it goes down."
The Brumbies take on the Jaguares on Sunday morning, kicking off at 7:40am AEST, broadcast LIVE on FOX SPORTS.