Sean O'Brien signs new deal to keep him at Leinster until after 2019 World Cup

Ireland flanker Sean O’Brien has signed a new three-year contract with the Irish Rugby Football Union that will keep him at Leinster until after the 2019 World Cup.

O’Brien made his debut for the three-time European champions in 2008 and won the first of his 41 caps a year later and has made two Test appearances for the British and Irish Lions.