The Glasgow club came within hours, within minutes even, of being declared bankrupt due to their overdraft exceeding its £5m limit. The Bank of Scotland suddenly announced they had withdrawn the facility and were calling in the receivers.

Expatriate businessman McCann, whose previous efforts to invest in his childhood heroes had been rebuffed by an entrenched board, flew in from Canada, gave the bank the £1m they were demanding and acquired a 51 per cent shareholding.

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But the 4-2 loss which Celtic suffered at the hands of their city rivals Rangers at home in a Premier Division game a couple of months earlier – the last time the Ibrox club won at Parkhead in a January fixture – was a pivotal moment in their history and very much accelerated the demise of those who were desperately clinging on to power.

It has become known as, for reasons which will be explained, The Mars Bar Game.  

There had been unhappiness about how the former European Cup winners’ were being run, about the “biscuit tin mentality” of those who held sway, among their worldwide support long before Lou...