Celtic could be in more hot water after fans showed another anti-royal banner during their Champions League match against RB Leipzig - just hours after they were fined by UEFA for a similar previous message.
The governing body announced on Tuesday that the Scottish club would fined £13,000 (€15,000) for their 'F*** the Crown' display against Ukrainian side Shakhtar Donetsk on September 14.
That fell foul of rule 16, section E of UEFA's disciplinary guidelines, which states clubs may face action for using 'gestures, words, objects or any other means to transmit a provocative message that is not fit for a sports event, particularly provocative messages that are of a political, ideological, religious or offensive nature.'
Later that evening, Celtic hosted German outfit RB Leipzig at Parkhead in Glasgow - and risked further wrath from UEFA when the 'ultra' Hoops fans unfurled a banner in the second half which read: 'Against Hunger and the Crown'.
It stayed up for around five minutes while supporters sang popular Irish ballad 'Fields of Athenry', a historic song critical of the Crown in the form of the British government for punishing a man who stole to feed his family during the Irish famine in the 1840s and was being transported to the other side of the world, before chanting 'F*** the Tories' about Britain's current Conservative government.
However, the absence of offensive language may see them escape more sanctions, with their previous banner saying: 'Sorry for your loss Michael Fagan', in reference to the man who broke into Buckingham Palace in 1982, as yet unpunished.
Her Royal Highness Queen Elizabeth II passed away on September 8, with British sport subsequently offering memorials to Her Majesty.
Celtic were criticised for their response, which included a banner saying: 'If you hate the Royal Family clap your hands'. They also sung the same words.
Bhoys manager Ange Postecoglou urged fans to be more 'respectful', while former Rangers midfielder Graeme Souness said they had 'damaged the club beyond belief'.
The match ended in a 2-0 defeat for Postecoglou's side, with late goals from Timo Werner and Emil Forsberg proving decisive.
Celtic are now bottom of Group F, with just one point from four games and a goal difference of minus seven, and it is now impossible for Celtic to qualify for the knockout stages of the Champions League.
They can achieve a third-place spot which would see them drop into the Europa League, but would need to get a result in their final two matches against Shakhtar and Real Madrid.