Beauden Barrett will start at first five eighth against Argentina in Napier on Saturday with Aaron Cruden ruled out of the Rugby Championship test with a chest injury.
The All Blacks team will be named tomorrow morning, but TVNZ reported tonight that Barrett would start for the third time in a test career that's seen him come off the reserves bench in 19 of his 21 tests since his debut in 2012.
The 23-year-old's only other test starts have been at fullback, against Italy in 2012, and Japan last year.
Cruden has been in exceptional form this season, but suffered a chest muscle injury during the All Blacks Bledisloe Cup win over the Wallabies at Eden Park two weeks ago.
How will the All Blacks fare at the 2015 Rugby World Cup?