Argentina handed Australia a record-breaking Test defeat after a stunning turnaround saw them overturn a 17-point deficit to win 67-27 in the Rugby Championship.
South Africa moved on the verge of securing the Rugby Championship trophy after beating New Zealand 18-12 in Cape Town, their fourth successive win over the All Blacks.
New Zealand have dropped Beauden Barrett and TJ Perenara to the bench for Saturday's Rugby Championship fixture against South Africa in Cape Town.
South Africa have made 10 changes to their starting XV for Saturday's Rugby Championship match with Australia, live on Sky Sports.
Argentina stunned New Zealand 38-30 in the sides' Rugby Championship opener in Wellington as they claimed their third win over the All Blacks in four years.
Kurt-Lee Arendse scored two tries as South Africa equalled their biggest win over Australia on their opponents' turf with a 33-7 victory in Brisbane.