Fans gathered to greet players with smoke bombs ahead of the Old Firm game despite pleas to stay away due to the coronavirus crisis.
Celtic ultra group the Green Brigade congregated outside the game as they clashed with Glasgow rivals Rangers.
Neil Lennon, Steven Gerrard and even First Minister Nicola Sturgeon had called for fans to stay away from the stadium today and to watch the match in the safety of their own homes, reports the Daily Record.
But fans still came and greeted the arrival of their heroes with smoke bombs and firecrackers that emitted green smoke and a banner which read: “Today, nothing else matters.”
Rangers eventually beat Celtic 2-0 in the match.
Nicola Sturgeon had broached the subject of fans staying away from the game at the Scottish Government’s coronavirus briefing on Friday.
The First Minister said: “This statement is possibly a controversial one, I readily acknowledge that, but I’m afraid of watching football, no matter how essential it might seem, to some does not fall into the essential category.
“You mustn’t go round somebody else’s house to watch the match.
“In addition, people should not be gathering outside, or around the stadium, there will be nothing to see there, so there is no point at all, in turning up.”
A video was released last night on social media showing the fans descending on the training centre to hoist the banner and salute the players as they arrived for training.
Police Scotland voiced disappointment the fans had ignored advice to stay away from the match.
They made no arrests.
Superintendent Stevie Dolan said: “Despite there being no spectators, a policing plan was in place in case of any issues outwith the stadium.
“Disappointingly, despite the clubs, Government and police asking people to do the right thing and stay away, a minority of fans did gather near Celtic Park ahead of the match and pyrotechnics were used.
“Our approach throughout the pandemic has been to engage with the public, explain the legislation and guidance, and encourage compliance, only using enforcement as a last resort.
“We will continue with that approach, but we will not hesitate to use enforcement action where it is necessary.”