Cox first played Gaelic football at juvenile and underage levels with the Listowel Emmets club.
[3] Cox also lined out with University College Cork and was part of their Sigerson Cup-winning team in 2014.
[4] Cox first appeared on the inter-county scene with Kerry during unsuccessful spells with the minor and under-21 teams.
[7][8][9] Cox was drafted onto the Kerry senior football team in 2013 and made a number of National League appearances.
His decision to spend the summer in the United States during the team's All-Ireland SFC-winning season in 2014 hastened the end of his inter-county career with Kerry.