All Blacks coach Steve Hansen has made six changes for Saturday's Test against Argentina but insists the revamp is part of his World Cup planning, not a reaction to a shock loss to South Africa.
Hansen said the world champions had learned from the 36-34 defeat to the Springboks, their first Rugby Championship loss in three years, and wanted to implement changes against the Pumas in Buenos Aires this weekend.
He said back-to-back Tests against Argentina and South Africa next week gave world champions a chance to practice for the sudden-death rounds of the World Cup in Japan next year.
"From a selection point of view, we've always seen these next two Test matches as a great opportunity to replicate the knockout stages of the Rugby World Cup," he said. "We'll have to beat quality teams back-to-back if we are to keep advancing in the tournament."
Jordie Barrett, who gave away an intercept try against the Boks, is the highest-profile casualty as Ben Smith returns to fullback, making room for Waisake Naholo's return on the wing.
Sonny Bill Williams makes his first start after an injury lay-off, relegating Anton Lienert-Brown to the bench, while Beauden Barrett retains his spot at fly-half despite facing criticism over his role in the loss.
15-1: Ben Smith; Waisake Naholo, Ryan Crotty, Sonny Bill Williams, Rieko Ioane; Beauden Barrett, TJ Perenara; Luke Whitelock, Sam Cane, Shannon Frizell; Scott Barrett, Sam Whitelock (capt); Ofa Tu'ungafasi , Codie Taylor, Karl Tu'inukuafe.
Replacements: Nathan Harris, Tim Perry, Angus Ta'avao, Patrick Tuipulotu, Ardie Savea, Aaron Smith, Richie Mo'unga, Anton Lienert-Brown.