John Sullivan is an Irish professional footballer who plays as a midfielder

Midfielder

A midfielder is an association football position. Some midfielders play a more defensive role, while others blur the boundaries between midfielders and forwards. The number of midfielders a team uses during a match may vary, depending on the team's formation and each individual player's role...

 for League of Ireland

League of Ireland

The League of Ireland is the national association football league of the Republic of Ireland. Founded in 1921, as a league of eight clubs, it has expanded over time into a two-tiered league of 22 clubs. It is currently split into the League of Ireland Premier Division and the League of Ireland...

 side Shelbourne

Shelbourne F.C.

Shelbourne Football Club is an Irish professional football club based in the Drumcondra area of Dublin, currently playing in the League of Ireland Premier Division....

.

Career

Sullivan signed for Hamilton Academical

Hamilton Academical F.C.

Hamilton Academical Football Club, often known as Hamilton Academical, or Accies, are a Scottish football club from Hamilton in South Lanarkshire. They were established in 1874 from the school football team at Hamilton Academy. They remain the only professional club in British football to have...

 on 2 January 2009 from Irish side Bohemians

Bohemian F.C.

Bohemian F.C. , more commonly referred to as Bohemians, is a professional football club from Dublin, Ireland. Bohemians compete in the Premier Division of the League of Ireland and are the third most successful club in League of Ireland football history, having won the League of Ireland title 11...

. He made his professional debut on 26 December 2009, in a Scottish Premier League

Scottish Premier League

The Scottish Premier League , also known as the SPL , is a professional league competition for association football clubs in Scotland...

 match against Celtic

Celtic F.C.

Celtic Football Club is a Scottish football club based in the Parkhead area of Glasgow, which currently plays in the Scottish Premier League. The club was established in 1887, and played its first game in 1888. Celtic have won the Scottish League Championship on 42 occasions, most recently in the...

. Sullivan left Hamilton at the end of the 2009-10 season to return to Ireland, spending the 2010 season with Limerick

Limerick F.C.

Limerick Football Club is an association football club based in Limerick, Ireland. The club currently play in the First Division of the League of Ireland. The first Limerick FC was founded in 1937 and has had a number of guises through its history, known at different times as Limerick FC, Limerick...

, before moving to Shelbourne

Shelbourne F.C.

Shelbourne Football Club is an Irish professional football club based in the Drumcondra area of Dublin, currently playing in the League of Ireland Premier Division....

in time for the 2011 season.