Highlanders pair Richard Buckman (utility back) and Tom Franklin (lock), along with Chiefs prop Atu Moli, are the three new inclusions in the 34-man squad at a training camp in Christchurch.
The squad will then assemble in Auckland on Thursday 10 August to prepare for the opening Bledisloe Cup Test of the Championship against Australia in Sydney on Saturday 19 August.
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Note: Players from the Crusaders in contention for the All Blacks will not attend the camp as they are preparing for the Investec Super Rugby Final in South Africa.
The All Blacks squad for the Investec Rugby Championship will be named on Monday 7th August.