John "Sandy" McMillan (1869–1892)[1] was a Scottish soldier who made one appearance at centre-half in the FA Cup for Southampton St. Mary's Football Club in 1891.
McMillan was a member of the 93rd Argyll and Sutherland Highlanders who played a friendly football match against St. Mary's at the County Ground, Southampton on 10 October 1891.
[3] With this he immediately sent a telegram of protest accompanied by the necessary fee of 2 guineas[4] to the Football Association (FA) claiming that the Saints had fielded illegally registered players in Fleming and McMillan.
The claim was upheld by the FA, who found that the players had not been registered at least 28 days before the match, and as the Saints had not complied with the requirements of Rule 5 they were thus expelled from the competition.
[5] Unlike Fleming, who went on to have a career in The Football League, McMillan immediately returned to his regiment and shortly afterwards was posted to India, based at Umballa, where he died the following year of enteric fever.