Ireland prop John Hayes has received a six-week ban for stamping on Leinster forward Cian Healy.
Munster tighthead Hayes was sent off following the second-half incident during last Saturday's Magners League game in Dublin, which Leinster won 30-0. His boot made contact with Healy's face.
Hayes' suspension means he will miss the opening two games of Munster's Heineken Cup campaign, starting against Northampton next Saturday and followed by a home appointment with Treviso. He must also sit out Magners League games against Edinburgh and Ulster.
But Hayes will be available for all three of Ireland's autumn Tests, starting against Australia on November 15 and concluding against world champions South Africa 13 days later.
A three-man Irish Rugby Football Union disciplinary panel, sitting in Belfast, decided his offence warranted a "high end entry level" in terms of sanction.
England flanker James Haskell insists he will be pushing as hard as possible to be back from a toe injury in time to make his case for a spot in Eddie Jones' side looking to defend their RBS 6 Nations title next year.