Samoa centre George Pisi has received a six-week ban following a tackle on Ireland wing Tommy Bowe during last Saturday's Test match in Dublin.
Northampton player Pisi had been cited for a dangerous tackle. He was yellow-carded for the offence by referee Steve Walsh.
Pisi successfully argued that the incident should be considered as a 'tip tackle', to which he pleaded guilty before an independent three-man disciplinary panel in London on Tuesday.
Pisi also claimed the incident did not warrant a red card, but the committee did not agree, deciding their punishment warranted a mid-range entry point of an eight-week suspension.
That was then increased by two weeks as a deterrent with regard to tip tackles, before four weeks were taken off after various mitigating factors were taken into account.
Pisi, who has the right of appeal, cannot play again until December 23.