	After joining the Galway under-21 team, Donoghue made his first appearance on 21 August 1993. He lined out at left wing-back in a 1-09 to 1-07 defeat of Cork in the All-Ireland semi-final. Donoghue retained his position on the starting fifteen for the All-Ireland final against Kilkenny on 3 October. He collected a winners' medal following the 2-09 to 3-03 victory.