Celtic fans were booed by their opposite numbers at St Mirren on Sunday afternoon after an anti-monarchy chant was started in Paisley - with Sky Sports apologising for the ordeal.
Following the death of Her Majesty Queen Elizabeth II last week, fixtures were postponed last weekend as a mark of respect to the passing of the 96-year-old. This is the first weekend that Scottish football has resumed since, although Celtic, Rangers and Hearts all played European ties in midweek in an early return. Whilst Rangers unveiled a tifo of The Queen and sang the national anthem in their defeat to Napoli, Celtic fans had a banner of their own against Shakhtar Donetsk that read 'F*** the Crown' - much to the dismay of UEFA, who opened a disciplinary investigation into the incident.
Manager Ange Postecoglou urged fans to respect the minute's applause in midweek after the game in Warsaw, and it remained to be seen whether they would follow their Aussie boss in paying their respects to the Royal Family. But that wasn't the case - with Sky apologising after fans unveiled a banner and chanted against the applause.
