Sean O’Brien has been ruled out of the Rugby World Cup as he is set to undergo hip surgery that will keep the Carlow man out of contention for six months.
A statement from Leinster read: "Back row Seán O'Brien - who lifted the PRO14 trophy yesterday in Celtic Park on behalf of the 57 Leinster players that competed over the 23 game domestic season - will undergo surgery in the next few weeks for a hip injury and as a result will be ruled out of action for up to six months.
"As a result he has been ruled out of the Rugby World Cup in Japan.
"Everyone at Leinster Rugby wishes Seán the very best of luck with his recovery and of course with his move to London Irish later in the year."
With O'Brien's move to London Irish lined up for December, it is more than likely he has played his last game for Ireland.