Chiefs first five-eighth Damian McKenzie is in danger of missing the opening All Blacks test of the year.
McKenzie will face the Sanzaar judiciary after receiving a red card for a dangerous tackle in the 22nd minute of the Chiefs' 40-34 Sky Super Rugby Transtasman defeat to the Reds in Townsville last night.
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McKenzie committed an armless high tackle on halfback Tate McDermott which resulted in a sending off.
He faces up to six weeks on the sidelines which should be reduced to three weeks, due to no previous incidents.