He ended the game with a winners' medal following the 2-23 to 2-17 victory. On 1 July 2018, Morrisey scored a point from left wing-back when Kilkenny drew 0-18 apiece with Galway in the Leinster final. He retained his position on the starting fifteen for the replay a week later, which Kilkenny lost by 1-28 to 3-15. On 30 June 2019, Morrissey lined out at right wing-back when Kilkenny suffered a 1-23 to 0-23 defeat by Wexford in the Leinster final.