Jimmy O'Brien pictured during a Leinster squad training session last month. Picture:Seb Daly/Sportsfile
A neck injury means that Jimmy O'Brien has been ruled out of the Six Nations rugby Championship.
"Jimmy O’Brien has picked up a neck injury and will be unavailable for a number of months," Leinster have said in a statement.
The 27-year-old winger last played in Leinster's Investec Champions Cup win over Sale on December 16.
O'Brien's parents, John O’Brien from Northfields and Caroline Fitzgerald from Glenconnor, are originally from Clonmel.
He made his Six Nations home debut last March when he replaced Hugo Keenan just before half-time in the 29-16 victory over England at the Aviva Stadium, which secured Ireland's fourth Grand Slam.
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