FIFA have threatened to ban Greece from world football after their domestic league was suspended following PAOK chairman Ivan Savvidis armed pitch invasion.
Savvidis carried a gun onto the pitch in frustration after his side were denied a goal against AEK Athens.
And FIFA have issued a statement to warn Greece that they must prove that their national competitions can run smoothly or face a global ban.
A statement via the BBC’s Richard Conway said the national body must “take proper actions by the competent bodies to eradicate all sorts of violence in order to guarantee the smooth running of the national competitions.”
Authorities announced all Super League games are suspended until further notice after Savvidis, one of Greece’s richest men, entered the field of play with a gun in a holster and allegedly told the referee: “You’re finished.”
PAOK had a late goal disallowed which sparked the chairman’s fury.
“Images of ‘persons entering sports grounds armed’ harm PAOK and football in general,” Greek Deputy Culture and Sports Minister Georgios Vassiliadis said in a written statement on Monday.
“Such extreme phenomena call for bold decisions,” he added, without elaborating. Greece’s state broadcaster ERT said one option being considered was suspending first division fixtures.
Vassiliadis said: “We will not allow anybody to deter us from this path, even if tough decisions are required in consultation with UEFA.”
AEK’s Spanish coach Manolo Jimenez said: “He threatened the referee right in front of me. According to my interpreter, he told him: ‘You’re finished as a referee’.”
Savvidis was born in Georgia of Greek heritage and is a former member of the Russian parliament. He has holdings in assets ranging from Thessaloniki port to tobacco and media companies.
Greek fixtures are frequently marred by violence. A derby between PAOK and Olympiakos was called off last month after Olympiakos coach Oscar Garcia was hit by a roll of paper thrown from the stands.
Authorities say they are committed to cleaning up the sport.