South Africa winger Breyton Paulse was suspended for three weeks on Sunday after being found guilty of kicking Australia prop Al Baxter.
The Springboks star was cited by the independent citing commissioner after an incident during South Africa's 22-19 win over Australia in Perth.
The panel found Paulse guilty despite the player claiming he had only lashed out in frustration at being held illegally.
Paulse will now miss South Africa's final Tri-Nations match against the All Blacks in Dunedin next Saturday.