Head knock

Blues first-five Beauden Barrett was forced off the field with a knock to the head in the Blues' Super Rugby Pacific win over the Highlanders in Dunedin on Saturday night, just weeks after saying he feared his career was over due to concussion symptoms.

Barrett had returned to rugby recently following a serious concussion in November during the All Blacks' loss to Ireland, and last night's game at Forsyth Barr Stadium was his first start of the season.

Williams took a blow to the head when making a tackle early in the All Blacks' 54-34 win over the Wallabies in Sydney on Saturday.

The 32-year-old appeared to be struggling after sustaining another couple of big impacts, but did not undergo the HIA protocols.

SANZAAR reviewed the incident and concluded that there had been no "deliberate failure" on the part of the world champions in the way they handled the situation.