All Blacks coach Scott Robertson has revealed why they opted to bring Dalton Papali'i into camp again following the injury to Wallace Sititi.

Sititi is out for the series against France with a high ankle injury, with Blues flanker Papali'i whistled in as injury cover after missing the initial squad and Christian Lio-Willie moved into the squad proper.

Robertson says Ethan Blackadder - who also missed out - was unavailable to come in.

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