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 and credited the fitness coach Mark Howard for helping him lose weight and improving his physique. Treacy then set up a goal for Jason Shackell on 31 August 2013, in a 3-0 win over Derby County. Treacy's second goal later came on 15 February 2014, in a 1-1 draw against Bournemouth. However throughout the 2013-14 season, Treacy's first team was largely restricted to substitute appearances, although he's opened to sign a contract with the club. Despite helping the club promoted to the Premier League for the first time since 2009, Treacy was released by the club, having remained a fringe