Ireland back-row Peter O Mahony has been handed a three-game ban following his red card in last weekend s defeat to Wales.
O Mahony was shown a red card in the 14th minute for what was deemed dangerous play in a ruck.
The Munster captain will now miss Ireland s Six Nations games against France, Italy and Scotland.
He is free to play again on March 15, which is the week of the tournament finale, when England are due to play Ireland in Dublin.
O Mahony s initial six-week offence was halved based on what the disciplinary panel deemed to be mitigating factors.
The official disciplinary report read: