On 10th March 1883, Ingris won an international cap playing for Scotland against England. Scotland won 3-2. Two days later he played in the 3-0 victory over Wales. This time the team won 3-0. It was his last cap as later that year he joined Blackburn Rovers. At that time Scotland did not select men playing in England.
The Blackburn Times reported: "There is one point about Blackburn Rovers that does not give entire satisfaction and this is the introduction of Inglis of the Glasgow Rangers. It is "hard lines" on Sowerbutts or whoever else is supplanted, that after the faithful services of the past he should be pushed out in this manner, and besides that there is a class of people in the town who would rather lose the Cup on their merits than win it with the aid of a specially introduced stranger." In fact, Joe Sowerbutts, a local lad, had emerged as one of the stars of the team, and retained his place alongside Inglis.
After Blackburn Rovers beat Notts County in the semi-final of the FA Cup, the club made an official complaint to the Football Association that John Inglis was a professional player. The FA carried out an investigation into the case discovered that Inglis was still working as a mechanic in Glasgow and was not earning a living playing football for Blackburn Rovers.
John Inglis played in the final against Queens Park at outside left. Other Scots in the team included Jimmy Douglas (outside right) Fergie Suter (left-back) and Hugh McIntyre (centre-half). The Scottish club scored the first goal but Blackburn Rovers won the game with goals from Blackburn lads, James Forrest and Joe Sowerbutts.