He won two All-Ireland SFC medals; in 2003, playing a pivotal role in Tyrone's blanket defence system, and as a panel member in 2005.
Devlin has coached Kildress Wolfe Tones Seniors in Tyrone.
[citation needed] He assisted Mickey Harte during the end of his tenure as Tyrone senior manager, then moved with him to Louth.
[3][4] When working together during their single season with Derry, Harte said of coach/selector/assistant Devlin: "He is as good as another son to me".
[5][6][1] Ten months after leaving Louth, Devlin returned there as "underage football development coordinator, with a remit of steering the county's academy squads, post-primary and rising stars programme", according to Louth GAA.