Celtic are in talks with the Scottish Government and Glasgow City Council to have 18000 fans at their Champions League qualifying clash with Danish side Midtjylland next Tuesday.
The discussions come just hours after First Minister Nicola Sturgeon said the whole of Scotland will move to level zero coronavirus restrictions on Monday.
That means the return of fans to stadiums, with 2000 seated fans permitted. However, clubs can apply to stage larger events following the easing of restrictions.
Celtic have already received permission for 2000 supporters to attend their pre-season friendly against Preston North End at Parkhead on Saturday.
But they hope to have thousands more cheering on the side for the crucial European qualifier against Midtjylland, which will be Ange Postecoglou’s first competitive home fixture as Celtic manager.