Lock Anthony Boric has joined a growing list of All Blacks who will not make the June tests against Ireland.
He has been told to rest his damaged neck until the Super 15 series takes a break towards the end of May when medical staff will evaluate how well he has recovered from the injury.
If he is still struggling, Boric will have surgery which would take him out of the rest of the rugby season, like his teammates Jerome Kaino and Isaia Toeava.
"That wait gives Anthony the chance of still coming back and playing for the Blues once the Super 15 resumes," team doctor Stephen Kara said.
Boric will continue to train and sharpen his skills but he is not allowed to engage in any contact sessions for another two months.