Ireland have revealed that Ulster lock Dan Tuohy fractured his forearm during the 26-3 win over Wales last Saturday in Dublin.
The 28-year-old came on as a replacement for Ireland captain Paul O'Connell in the second half.
Tuohy, who previously started Ireland's opening match against Scotland, has not yet been given a timeframe regarding when he will be able to return.
A number of players reported bumps and bruises following the game but none are considered to be serious injury concerns
A number of players will return to their provinces this week to get game time this weekend and the rest of the Ireland squad will attend a mini-camp in Clonmel this week.