Career
Born in Collinstown, County, Cloonan first excelled at hurling in his youth. He arrived on the inter-county scene when he first linked up with the minor team, before later joining the under-21 side. He made his senior debut in the 2004 National Hurling League.
At club level Cosgrove plays with Lough Lene Gaels.
Cosgrove was forced to retire due to injury after the 2009 Christy Ring Cup. His father, Michael, also played hurling with and later served as manager of the team
