Hooker Tatafu Polota-Nau has been ruled out of the Wallabies' Rugby Championship and Bledisloe Cup opener against the All Blacks with a knee injury suffered in Saturday's Super Rugby final.
Polota-Nau underwent scans today and was found to have a low-grade medial crucial ligament strain. He limped from the field at halftime on Saturday night during the New South Wales Waratahs' 33-32 win over the Crusaders.
His injury compounds the Wallabies' front row problems because hooker and captain Stephen Moore has already been ruled out for the remainder of the season with a knee injury.
Nathan Charles, who has played only two tests, will likely start in place of Polota-Nau against New Zealand at Sydney on August 16.
The All Blacks have won the Rugby Championships the last two years and are unbeaten in their last 17 tests.
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