New Zealand's media expect "the book to be thrown at" Andrew Hore after the hooker was cited for an alleged strike on Wales forward Bradley Davies.
Hore appeared to catch Davies with a blow from behind early in Saturday's 33-10 Test victory over Wales, and has been cited by the International Rugby Board (IRB) for striking.
Veteran New Zealand rugby commentator Keith Quinn said Hore could expect a lenthy ban for the incident, which resulted in Wales second-row Davies being stretchered off the field and taken to hospital for precautionary examinations.
"Suddenly, just after the start of the game, there was this boneheaded act from Andrew Hore... I expect they'll throw the book at him," Quinn told Radio New Zealand.
Dominion Post rugby columnist Toby Robson said that with only one Test remaining in the All Blacks tour, against England on Saturday, Hore may as well pack his bags and return to New Zealand immediately.
"Whatever he was trying to achieve - let's give him the benefit of the doubt till his case is heard - the hooker must be handed a lengthy suspension," he wrote.
"It is an embarrassing situation for the New Zealand Rugby Union, with chief executive Steve Tew spending much of the past three weeks in Europe extolling the virtues of the All Blacks' brand."
The New Zealand Herald's Gregor Paul said: "Andrew Hore's act of stupidity will have confirmed in every Northern Hemisphere mind the long-held notion of the All Blacks as perennial thugs."