Mullingar RFC man calls it a day after persisten hamstring injuries.
Mullingar's Conor O’Brien says he left no stone unturned in his attempts to return from injury.
The 26-year old centre has been forced to retire at the age of just 26 due to a persistent hamstring injury.
O’Brien made 24 appearances for Leinster, with what proved to be his final game coming against the Dragons in October of last year.