In the absence of injured regulars Samu Kerevi and Tevita Kuridrani, the Wallabies don't have a specialist option for a position which poses many challenges in defence.
Utility Reece Hodge is expected to fill the Wallabies No.13 spot with fullback Israel Folau another option.
All Blacks assistant coach Ian Foster also threw up utility Matt Toomua's name on Tuesday ahead of the Wallabies team announcement on Thursday.
