All Blacks winger Sitiveni Sivivatu will miss next weekend's final Tri Nations rugby match against Australia after being injured in Saturday night's game against South Africa in Hamilton.

Sivivatu, who scored a try in the Springboks' 32-29 win, left the field with 10 minutes to go.

All Blacks Doctor Deb Robinson said Sivivatu had suffered a groin strain and would be out of action for up to six weeks.

"He was running at speed, sidestepped and then felt a strain in his right groin," Robinson said.

The All Blacks head to Wellington on Sunday to prepare for the match against Australia on Saturday.

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