Hurricanes captain Conrad Smith will miss this weekend's clash with the Blues because of a knock to the head in a 22-18 win over the Chiefs on Saturday.
Smith went for a concussion test during the match and did not return.
Despite having passed the test and having no symptoms since, he will take his second mandatory All Blacks rest this weekend.
Rey Lee-Lo is likely to fill Smith's spot at centre with Matt Proctor under an injury cloud.
Prop Ben Franks and second five-eighth Ma'a Nonu are the other All Blacks that still need to sit out a match before the conclusion of the season.