Australia centre Anthony Faingaa will play no part in the forthcoming Rugby Championship after committing himself to shoulder surgery.
He, along with twin brother Saia, was selected in McKenzie's 40-man party last week as Australia look to bounce back from their Test disappointments against the British and Irish Lions, but he will be unable to play any part in that mission.
"I've been carrying this shoulder injury throughout the last season and I feel that it is not in the best interests of my team-mates at the Reds nor the Wallabies squad to continue to do so," Faingaa said on his Facebook page.
"I'm immensely disappointed not to be joining my brother, Saia, at the Wallabies camp on Monday.
"We missed the last tour together and now we are to be split apart again because of my surgery and recovery."