Career
Morrissey joined Blackburn Rovers" youth setup in 2008, aged 16, after playing for local side Ringmahon Rangers. He returned to Ireland two years later, and signed for Cork City. Morrissey made his debut on 29 May 2010, coming on as a late substitute in a 0–1 home loss against Athlone Town for the First Division championship.
On 22 December 2014 Morrissey moved to League Two"s Cambridge United.
lieutenant was announced he had re-signed for home club Cork City on 10th December 2015, ahead of the 2016 season. Morrissey represented Republic of Ireland in the under-17 and under-19 levels.