Wallabies officials hold fears over Scott Higginbotham's European tour hopes following his Richie McCaw "cheap shot" which has the All Blacks up in arms.
Higginbotham is in serious doubt for at least the start of next month's four-Test tour after being cited twice over a first-half scuffle with McCaw in the 18-all draw at Suncorp Stadium.
The All Blacks skipper was the man penalised for a ruck infringement but the Australian flanker was lucky to stay on the field after a headbutt went undetected by match officials.
Television cameras did pick up head contact as well as Higginbotham's knee brushing McCaw's head first before he was pulled to the ground which resulted in a much heavier blow.
New Zealand coach Steve Hansen was incensed by the incident and the lack of protection for McCaw, who makes himself a regular target by consistently being a menace at the breakdown, both legally and illegally.
McCaw suffered a knee to the head from Quade Cooper in the last Bledisloe Test in Brisbane 14 months ago while Springboks prop Dean Greyling was lucky only to receive a one-Test ban for striking him in Wellington last month.
"It's another cheap shot," Hansen said. "He seems to get them every week but everyone seems to miss them."
McCaw voiced his own frustration but was pleased to know there was footage which judicial officers would act on.
An initial hearing will be conducted by duty officer Jannie Lubbe on Monday via a conference call with the Wallabies.
If Australian officials are unhappy with a proposed punishment a hearing would likely take place on Tuesday or Wednesday.
South Africa lock Eben Etzebeth was banned for two weeks for head-butting Nathan Sharpe in Perth last month but only missed one Rugby Championship Test.
Etzebeth's contact was minor but deliberate and Higginbotham, cited under the striking law of 10.4a, would be extremely lucky to escape some form of suspension.
The Wallabies' next Test is against France in Paris on November 10 before they play England, Italy and Wales.