Leinster Rugby has confirmed that Seán O’Brien has agreed to join London Irish after the 2019 Rugby World Cup in Japan.
The 31 year old back row, who turns 32 this Thursday, is one of Leinster’s most decorated players, having come through the Leinster Academy system and having played 122 times for Leinster since his debut in September 2008 against the Cardiff Blues. He has scored 20 tries.
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In his time at Leinster he was part of the PRO12 winning squads in 2008, 2013 and 2014 as well as the Guinness PRO14 win last season.
He has four Heineken Champions Cup medals, starting in the Heineken Cup Finals of 2011 and 2012, and also a Challenge Cup medal in 2013.