All Blacks flanker Jerry Collins will miss the Tri-Nations decider against Australia after picking up a two-week ban on Sunday in the 31-27 win over South Africa.
Collins was cited for punching replacement Springboks fly-half Jaco van der Westhuyzen after a brawl broke in Saturday's titanic clash in Dunedin.
A disciplinary committee found that Collins' punching was excessive and has banned him from all rugby until September 10 - ruling him out of next Saturday's Test in Auckland.
The committee found that Collins was one of the main protagonists during the brawl and continued to punch van der Westhuyzen while the South African was on the ground.
Collins has been suspended on three previous occasions, in each case the offences related to reckless and dangerous tackles.
Waikato loose forward Sione Lauaki, who was on the bench against South Africa, is set to step in for Collins.