The advent of European football led to the Glasgow Cup becoming less valued, and the tournament did not take place at all or was not finished several times in its later years.
The competition was dominated by the old rivals of Celtic and Rangers, but the others, Clyde, Partick Thistle, Queen's Park and the now defunct Third Lanark all enjoyed relative success.
[4] The Glasgow Cup was subsequently relaunched in 1990 as an Under-19 tournament competed for by the youth teams of Celtic, Clyde, Partick Thistle, Queen's Park and Rangers.
It then became an Under-17 tournament in 2008, competed for by the same teams as previously (although Clyde, once based in Rutherglen on the city boundary, had since relocated to Cumbernauld some distance outside Glasgow).
[4][6] From the 2019 competition, the age limit was raised to Under-20,[4] with several players involved in the Celtic v Rangers final that year having already featured for the clubs' senior teams in domestic and European competitions;[7] the match itself, played at Celtic Park, did not involve any public ticket sales due to concerns regarding spectator disorder as had occurred in previous years.
[1] In the opening round of fixtures, Clyde's 50-year-old manager Danny Lennon drew attention in the media when he brought himself on as a substitute in a win over Celtic's 'colts'.