Mo'unga to start at fly-half in second Rugby Championship match

All Blacks coach Ian Foster has made four changes to his starting 15, with Richie Mo'unga starting at number 10 in their second Rugby Championship match against South Africa this Sunday.

Mo'unga will partner with Aaron Smith in the halves while Beauden Barrett has been shifted to the bench.

Jordie Barrett retains his fullback spot while Will Jordan keeps his No.14 jersey, despite missing training through illness this week.

The All Blacks will meet South Africa at 3.05am Sunday, and the Wallabies will play Argentina at 7.10am Sunday.

All Blacks team against South Africa:

1-Ethan de Groot, 2-Samisoni Taukei'aho, 3-Tyrel Lomax, 4-Sam Whitelock, 5-Scott Barrett, 6-Shannon Frizell, 7-Sam Cane (c), 8-Ardie Savea, 9-Aaron Smith, 10-Richie Mo'unga 11-Caleb Clarke, 12-David Havili, 13-Rieko Ioane, 14-Will Jordan 15-Jordie Barrett

Reserves: 16-Codie Taylor, 17-George Bower, 18-Fletcher Newell, 19-Tupou Vaa'i, 20-Akira Ioane, 21-Finlay Christie, 22-Beauden Barrett, 23-Quinn Tupaea