Martin O'Neill says it will be "strange" not to have away fans at Ibrox Celtic players had a visit from Police Scotland on Friday to give them "a timely reminder" about their "general behaviour" in Sunday's Premier Sport Cup quarter-final against city rivals Rangers, manager Martin O'Neill has revealed.
Both Glasgow clubs were last month ordered to play their next home Scottish Cup matches behind closed doors after last season's quarter-final, won by Celtic after a penalty shoot-out at Ibrox, was marred by fan disorder.
It will be the first time Celtic have returned there since, although the Scottish champions did host a Scottish Premiership encounter in May, beating Rangers 3-1.
The Scottish Professional Football League recently announced that no away fans will attend Old Firm derbies in the league or League Cup this season.
"We had the police come in today, just a little 15-minute meeting to remind us of our behaviour, which I think is a timely reminder," O'Neill revealed.
O'Neill on Baur fitness, police visit & 'strange' setting Celtic take confidence & momentum into 'special' derby - Baur Asked what had been said, the Northern Irishman revealed: "They didn't mention this, but I would have assumed that one of the things that would be considered is what happens in the field of play, because these things can be taken further.