PAOK president Ivan Savvidis has been banned from football for three years for entering the pitch in possession of a gun during a Greek top-flight game against AEK Athens.
The 59-year-old had a gun in a hip holster when he entered the field after his team had a late goal ruled out for offside during the game on March 11, causing the encounter to be abandoned.
PAOK, meanwhile, have been fined €63,000 (£55,150) and also docked three points, which sees them drop to third place in a tight championship race with AEK and Olympiacos.
They will also play their next three home games behind closed doors and start next season with minus two points.
The ruling, which also includes a €100,000 (£87,560) fine for Savvidis, is open to appeal.
Title rivals AEK have been awarded a 3-0 win for the abandoned game, which was level at 0-0 when Savvidis entered the field.
The Superleague Greece will resume on Saturday after being suspended on March 12 in the wake of the incident, for which Savvidis later apologised.
