He replaces Denis Leamy.
Sean O'Brien will become Leinster's new contact skills coach, following the departure of Denis Leamy.
O'Brien will return to the province having brought an end to his playing career at London Irish in recent weeks.
Leamy is leaving the eastern province to return to Munster.
He'll fulfill the role of defence coach as part of Graham Rowntree's coaching ticket.
Ryder Cup Ticket Rush As Irish Fans Get First Access to Adare 2027
Prices hit record €499 as exclusive sale opens this Friday with demand expected to surge
Leinster's Caelan Doris Nominated For Investec Player Of The Year 2026
Doris could become the first Leinster winner since 2022.
Wednesday Morning Sports Update
Keeping you up to date on GAA, soccer and rugby.
Kildare Under20 Hurling Team To Play Wexford This Evening Named
Throw-in at 7:30pm.
ROI Womens Team Move Up To 22nd In The FIFA Women's World Rankings
They've moved up four places following back-to-back wins over Poland.
Harry Byrne Commits Future To Leinster After Signing New Deal
The out-half has kicked 425 points to date.
Ireland Look To Build On Strong Start At French Olympic Sailing Week
Today's races will determine standings for the elimination series.
Tuesday Morning Sports Update
Keeping you up to date on soccer, rugby and tennis.
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