Born in Carrigtwohill, County Cork, O'Farrell first arrived on the inter-county scene at the age of seventeen when he first linked up with the Cork minor team, before later joining the under-21 side.
Born in Carrigtwohill, County Cork, O'Farrell first played competitive hurling in his youth. He arrived on the inter-county scene at the age of seventeen when he first linked up with the Cork minor team, before later joining the under-21 side.