 Murphy joined the Limerick senior hurling panel in 2018 and made his first appearance for the team during the pre-season Munster League.He made his first appearance in the National Hurling League on 28 January 2018 after being introduced as a 46th-minute substitute for Gearóid Hegarty in a 1-25 to 0-18 defeat of Laois.He made his Munster Championship debut on 20 May 2018 and scored a goal in a 1-23 to 2-14 defeat of Tipperary.