Football fans attending the clash between St Johnstone and Celtic have been warned by police not to set-off flares.
Supporters will be searched before entering McDiarmid Park.
The warning follows complaints about a section of the Celtic support which travelled to Turkey on Thursday to cheer their team on against Fenerbahce in the Europa League.
Some fans set off flares and now the Glasgow team could face sanctions from UEFA.
Match commander Superintendent Tony Beveridge said: “We will enforce legislation in respect of pyrotechnics and supporters will be searched prior to entering the ground.
“I also want to remind supporters that it is an offence to try to enter the stadium in possession of alcohol or whilst drunk and this will be strictly enforced by police and stewards on duty. We want everyone to enjoy the game safely and anyone who threatens that safety by being drunk or behaving in a disorderly manner will be refused entry and may be arrested.”
He added: “The vast majority of fans come along to enjoy the football and the police and stewards are present to help keep everyone safe.”
The match kicks off at 12.30pm and supporters are advised to arrive “in good time” and consider travel arrangements.