Career
McKay joined Celtic from the army in September 1944 after serving in Burma with the Cameronians army unit He made a scoring debut on October 7th as Celtic lost 3-2 to Rangers in the Glasgow Cup at Hampden Park. He played a total of three Regional League games for Celtic – scoring two goals – before asking to be released in March 1945.
McKay later joined Alloa Athletic, and also went on to play for Portadown, Cowdenbeath and, in the 1949-1950 season, Tranmere Rovers.