UEFA will decide on Friday what action to take over the abandoned Champions League quarter-final second leg between AC Milan and city rivals Inter Milan.
After winning the first-leg 2-0, AC Milan were leading the second leg 1-0 after 73 minutes on Tuesday when the game was stopped because flares were thrown on to the pitch of the San Siro stadium the two clubs share.
UEFA said on Wednesday its disciplinary body will meet at 1200 GMT on Friday.
The body will have to decide on the result of the game and will handle any ban, suspension or fine related to the crowd disorder.
UEFA could order the second leg to be replayed or just the last 17 minutes but precedent suggest AC Milan, whose fans were not involved in the trouble, will be awarded victory and Inter a very heavy fine or a suspension and a banning order.
German referee Markus Merk took the players off the pitch after AC Milan keeper Dida was struck by one of dozens of flares thrown down from the stands after a header from Inter's Argentine midfielder Esteban Cambiasso was disallowed.
Dida received medical treatment to his shoulder while Inter players urged their fans to stop hurling objects on to the pitch.
The goal frame disappeared in clouds of smoke as flares continued to rain down and burn on the pitch.
The players came back on to the field after 25 minutes but Merk took them off again after just 30 seconds play and abandoned the game when more flares came down with no sign of intervention from the police.
The confirmed winners of the tie will play either Olympique Lyon or PSV Eindhoven in the semi-finals.
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