He won the 2014 Tyrone Senior Football Championship with his club Omagh St Enda's, scoring a last-minute goal against Carrickmore St Colmcille's in the final to bring about a scoreline of 1–10 to 0-12 and end a 26-year gap since the club's previous SFC title in 1988.
[2] He also won the 2017 Tyrone Senior Football Championship with his club.
[3] O'Neill retired from play after lifting the Sam Maguire Cup after just missing out on the matchday panel for the 2021 Decider and giving ten years of inter-county surface.
He plays club football for Omagh St Edna's.
[4] O'Neill was added to the Fermanagh backroom team with Kieran Donnelly as manager to coach forward play.