The Pumas struggled to cope in set-piece situations during their 46-24 loss to the All Blacks last weekend in Nelson, conceding a number of penalties at scrum time.

In the hope of solving the issue, Ledesma has selected Santiago Medrano to replace fellow prop Gaston Cortes in a reshuffled front row, with Nahuel Tetaz Chaparro shifting across to loosehead.

There is also a place in the starting line-up for flanker Pablo Matera, while Juan Manuel Leguizamon is named on the bench.

Argentina faces a Wallabies side boosted by victory over South Africa last week, while the visitor has only managed one Test victory on Australian soil since 1983.

Argentina XV to face Australia: Emiliano Boffelli, Bautista Delguy, Matias Moroni, Jeronimo De La Fuente, Ramiro Moyano, Nicolas Sanchez, Gonzalo Bertranou; Nahuel Tetaz Chaparro, Agustin Creevy, Santiago Medrano, Guido Petti, Tomas Lavanini, Pablo Matera, Marcos Kremer, Javier Ortega Desio.

Replacements: Julian Montoya, Santiago Garcia Botta, Juan Pablo Zeiss, Matias Alemanno, Juan Manuel Leguizamon, Martin Landajo, Bautista Ezcurra, Juan Cruz Mallia