Instead, although not explicitly stated, it was directed at Brendan Rodgers, who had a couple of nights earlier performed a midnight flit to Leicester City. You’ll remember the message because it was a classic of the genre and still holds it charge today. “You traded immortality for mediocrity,” Rodgers was told. “Never a Celt, always a fraud.”

It has already been a successful UEFA Champions League campaign for Celtic, with Brendan Rodgers’ side having secured a place in the play-off round of the prestigious tournament with a game to