Ray Treacy Rovers fans when his penalty against Sligo helped win the FAI Cup in 1978. Treacy almost scored a hat trick for the Republic of Ireland national football team against Turkey in April 1978. The two goals he scored (along with the game's opening goal by Johnny Giles) represent the last occasion that a home-based player has scored for the senior Irish national team until 40 years later when in June 2018, Graham Burke, also a Shamrock Rovers player, scored against the United States. Treacy represented the League of Ireland in a friendly against Argentina in the Boca Junior Stadium in
Keith Treacy Athletic on a one-year contract. Treacy played 14 league games for the Saints through the season, scoring one goal away to Derry City. He featured in all 4 games in the club's UEFA Europa League campaign but was not in the squad for the League Cup Final as Pats beat Limerick 4–1 to retain the trophy. On 29 November 2016, Treacy came out and spoke to the media about how 'Depression has been an issue for all of my career', his struggles with it through 2016 and how he was eyeing a possible comeback to the game in 2017. In