All three of the NSW Waratahs' contracted hookers are sidelined, plus six other forwards, entering a crucial three-week stretch for the 2-6 Super Rugby side.
Melbourne lock Lukhan Salakaia-Loto has been ruled out with a fractured foot in a big loss for the Rebels, who face the Crusaders in Super Rugby action.
Australian teams can turn the tables on their Kiwi rivals this round, ending years of dominance in the Super Rugby Pacific competition.