At club level he played with Garrymore and Milltown, while he was also a member of the Galway senior football team.
[2] On the inter-county scene, Tierney first play for Galway during a two-year stint with the minor team.
[4] Tierney brought his inter-county career to an end at the age of 27, however, he continued to line out at club level.
He received the ultimate accolade in 1999 when he was selected in the full-back position on the Galway Football Team of the Millennium.
His home club of Milltown made a presentation to him in the company of family, friends and supporters.