Career
He started his career with Manchester United, joining on a youth contract when he was 16 years old. After spending two years at the club and becoming disillusioned with the lack of first-team opportunities, McCormack turned down the offer of an extension to his contract. He moved to Italy and joined Serie B side United States. Triestina Calcio, becoming the first Irish player to move to Italy since Robbie Keane"s brief stint at Inter Milan.
McCormack endured a frustrating time at the club, failing to make a first-team start during his two and a half years there.
After a proposed loan deal to a Lega Pro side fell through at the last minute in May 2010, McCormack made his intentions to leave clear. He returned to Ireland to sign for League of Ireland champions at the beginning of the 2011 season, playing a huge part in their journey to the Europa League group stages.
In 2012 McCormack signed for a further 2 seasons. McCormack signed for League of Ireland champions, for the 2014 season in November 2013.
After 58 appearances for Pats, McCormack was released by mutual consent on the 28th of July 2015 and was announced as a new signing for relegation fighting Derry City later that day.
McCormack has previously captained the Republic of Ireland Youths team and has caps from Under 15, Under 16, Under 17 and Under 19 levels.