Celtic will face disciplinary proceedings from UEFA next month regarding "illicit chanting" during the side's Europa League clash against Rennes.
The Scottish side are due to attend a hearing with the governing body on December 8 to face a charge of unsporting nature from the club's supporters during their 3-1 win over Rennes on November 3.
The chanting is believed to have been about the IRA, which Celtic instantly condemned.
The former Scottish Premier League champions could face a fine along with a ban on supporters.
