 Although he has no formal involvement in football any more, he still turns out for the Posh Legends, the veteran side of Peterborough United.Gallagher, a forward, began his career in the youth team at Guyhirn where an impressive appearance in a youth cup final against Wisbech Town in 1973 saw him switch clubs to the Fenmen, making his first-team debut at the end of the 1973–74 season in the first leg of the county cup final against Willingham.He moved on to March Town United before joining Lincoln City in February 1976.