John Tierney is a former Cavan Gaelic football

Gaelic football

Gaelic football , commonly referred to as "football" or "Gaelic", or "Gah" is a form of football played mainly in Ireland...

er.

Playing career

The Knockbride

Knockbride

Knockbride is a parish in County Cavan, Ireland located outside the town of Bailieborough. There are two Roman Catholic churches namely West Knockbride and East Knockbride...

 clubman represented Dublin City University

Dublin City University

Dublin City University is a university situated between Glasnevin, Santry, Ballymun and Whitehall on the Northside of Dublin in Ireland...

 & Cavan GAA

Cavan GAA

The Cavan County Board of the Gaelic Athletic Association or Cavan GAA is one of the 32 county boards of the GAA in Ireland, and is responsible for Gaelic games in County Cavan...

 at Minor, U-21 and senior level in the Dr. McKenna Cup, NFL

National Football League (Ireland)

The National Football League is a Gaelic football tournament held annually between the county teams of Ireland, under the auspices of the Gaelic Athletic Association. The prize for the winning team is the New Ireland Cup, presented by the New Ireland Assurance Company...

 and played left half forward in the Ulster Senior Football Championship

Ulster Senior Football Championship

For information on this years competition, see Ulster Senior Football Championship 2011-2010 Draw:-2009 Draw:-2008 Draw:-Top winners:* All-Ireland winning years in bold.-Roll of honour:Notes:* 1907 No final result in records...

 final defeat to Tyrone

Tyrone GAA

The Tyrone County Board of the Gaelic Athletic Association or Tyrone GAA is one of the 32 county boards of the GAA in Ireland, and is responsible for Gaelic games in County Tyrone. The county board is also responsible for the Tyrone inter-county teams....

 in 2001. He represented the Ireland national Australian rules football team, that won the 2011 Australian Football International Cup

2011 Australian Football International Cup

The 2011 Australian Football International Cup is the fourth edition of the Australian Football International Cup, an international Australian rules football competition run by the Australian Football League....

 and 2010 European Championships in Australian Football. He also captained the Under-17 Ireland international rules football team

Ireland international rules football team

The Ireland International rules football team is the representative team for Ireland in international rules football, a compromise between Gaelic football and Australian rules football...

on a tour to Australia.