The Brave Blossoms bagged five tries to Fiji's three in their opening match of the Pacific Nations Cup on Saturday, two months before Japan hosts the first World Cup to be held in Asia.
A last gasp try from Herschel Jantjies allowed the Springboks to remain top of the southern hemisphere championship on seven points, one ahead of the All Blacks, with one match left for all four sides.
Buoyed by the Super Rugby success of the Jaguares, whose players make up a large majority of the squad, the Pumas will take on the Wallabies at Lang Park.