Props Toby Smith and Tom Robertson have been called into the Wallabies squad following an injury to Allan Alaalatoa.

Alaalatoa suffered a knee injury during Australia's encounter with the Boks on Saturday, and has not travelled with the squad to Perth for this Saturday's clash with the Pumas.

With the Wallabies expecting a big challenge up front from the physical Pumas, Smith and Robertson will look to bolster their tight five options.

Photo: Scott Barbour/Getty Images