Born in Belfast in 1950, the Northern Irishman was soon snapped up by Newcastle United, after impressive displays as a teenager with Glentoran. Cassidy made just short of 240 appearances for the Magpies over a ten-year period.
In July 1980, Cassidy then signed for the Clarets’ for £30,000. A cultured and stylish midfielder, he was instrumental in helping Burnley gain promotion back to the second tier of English football in 1982. Cassidy formed a midfield partnership with another future international star, Trevor Steven.
He made his international debut for Northern Ireland in 1971 against England. In total, Cassidy went onto make 24 appearances for his country. Whilst with the Clarets, he made his final appearance for Northern Ireland in the 1982 ‘World Cup Finals’ in Spain.
Northern Ireland faced Spain in their last group game and caused one of the biggest upsets in World Cup history, when they beat the host nation 1-0. Cassidy, a second-half substitute, was one of the heroes of Valencia as he took control of game with his elegant style of play.
After three-years at Turf Moor and 97 appearances in all competitions, Cassidy signed for Apoel Nicosia. He later went onto manage the Cypriot team, leading them to the League title in 1986.
In 1993 he took his first steps as a manager in England, taking control at Gateshead.
After 12 months on Tyne and Wear, he moved back home to manage Glentoran. He had mixed fortunes with the ‘Glens’, however, he guided them to the Gold Cup in 1995 and the Irish Cup 1996.
Following his departure, Cassidy had spells with Ards and Sligo Rovers, prior to returning to England to manage Workington in 2001. He guided the ‘Reds’ to the Northern Premier League in 2004 and twelve months later to the Football Conference Northern Division.
In 2007 he took charge at Newcastle Blue Star, prior to having short spells managing Whitby Town and Blyth Spartans.
Tommy Cassidy spent over forty-years in the game and will always be remembered for his stylish and level-headed approach to game. He was influential in developing the skills of the younger players, whilst here at Turf Moor.
The thoughts of everyone at Burnley Football Club are with his family and friends.