Celtic have been charged by UEFA over an "illicit banner" displayed during their Champions League qualifier against Israeli side Hapoel Be'er Sheva.
Dozens of Palestinian flags were displayed during the 5-2 win for Brendan Rodgers's side on Wednesday.
The European governing body's rules prohibit the use of "any message that is not fit for a sports event, particularly messages that are of a political, ideological, religious, offensive or provocative nature".
Celtic have already been punished by UEFA eight times in less than five years for a variety of offences and, if found guilty, could face the part-closure of their stadium for a future European fixture.
The case will be heard on September 22.
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