Mark O'Sullivan

Early career

Born in Ringaskiddy, County Cork, O'Sullivan played underage football with Hibernians of Shanbally and with Passage West. He came to the attention of John Caulfield when he was the manager of Munster Senior League side Avondale United. O'Sullivan was added to the Cork City roster in 2010 when Tommy Dunne signed him on amateur terms. The club were then playing in the League of Ireland First Division under the title of "Cork City Foras Co-op" following the club's financial issues of 2009. O'Sullivan made two appearances for Cork City that season, and later returned to the Munster Senior League, winning several league titles with Avondale, and three FAI Intermediate Cup medals. He was capped for the Republic of Ireland amateur team, playing in November 2012 against a representative England team.

Cork City

In January 2014, O'Sullivan signed for his former Avondale manager John Caulfield at Cork City. He made his second debut for the club against St Patrick's Athletic on 7 March, and scored his first goal three days later in a 4–0 win over Limerick in the League of Ireland Cup. He was awarded the League of Ireland Premier Division Player of the Month for June 2014. He was a member of the Cork City side that were runners-up in the 2014 league competition, with 11 goals in 33 league appearances, and two goals in cup competitions. In 2015, O'Sullivan scored nine goals in 28 league appearances, and played in the FAI Cup Final in which Dundalk defeated…

Club

Waterford League of Ireland First Division (1): 2017 Cork City FAI Cup (1): 2016 President's Cup (1): 2016 Avondale United FAI Intermediate Cup 2005–06, 2006–07, 2018–2019: 3 Munster Senior League Senior Premier Division 2008–09, 2009–10: 2