Celtic should find out before Thursday lunchtime whether they remain in the Champions League play-offs after Legia Warsaw's appeal against their effective expulsion was heard.
UEFA's appeals body met on Wednesday morning to listen to the Polish champions' arguments over the registration error that turned their 6-1 aggregate win over Celtic into an away-goals defeat.
A statement from Legia read: " The meeting of the UEFA Appeal Body was held in the morning, with Legia Warsaw co-owner Dariusz Mioduski and his associates present.
"The atmosphere during the meeting was fully professional and the club's representatives were granted the possibility to thoroughly present their stand on the issue.
"The decision of the UEFA Appeal Body is to be announced in the evening or tomorrow morning.
"Legia Warsaw would like to thank the UEFA disciplinary bodies for the prompt organisation of the appeal procedure.
"At the same time, we would like to inform you that until the official decision of the UEFA appeal body is announced the club will not issue any further communication."