The Ireland flanker Jordi Murphy, who scored the first try in his side's historic triumph over the All Blacks will be out for up to nine months with a knee injury.
Murphy suffered damaged ligaments in his left knee during the match and had to be taken off on a stretcher.
The 25-year-old, whose try set Ireland on the way to a 40-29 scoreline in Chicago and their first success over the All Blacks in 29 tests spanning 111 years which ended the world champions' record 18-match winning streak, will miss the Six Nations.
-Reuters