The All Blacks have swapped out more than two thirds of their starting XV from last week's win over Argentina, as they rest a string of first choice players ahead of two games against South Africa.
There are 11 changes to the run on side in total and a new look reserves bench.
Savea, who missed 39-nil trouncing of the Pumas on the Gold Coast after suffering a head knock in the final Bledisloe Cup win over the Wallabies, said his side can't afford to let Argentina outmuscle them in Brisbane.
"We need to match and be better than them in the physicality space.
