Stan Collymore has long been known as a Celtic fan at heart and turned history teacher when clamping down cynics of that famous 1967 Hoops side.
And quadruples are a topic in world football that seem to have some traction, with Manchester United and Manchester City fans currently going blow-for-blow over United's 1999 successors and Pep Guardiola's current crop of world beaters.
The achievement of four trophies in a season isn't one to be sniffed at, with many of the Celtic persuasion harking back to the famous Lisbon Lions side that filled the trophy cabinet.
Collymore moved quickly to get his Hoops history right, bringing up the fact that famous team didn't just become the first side in British history to bring the European Cup home but also won every competition they entered in the 1966/67 campaign even if Terry Christian isn't impressed.