Paris St Germain have been called before UEFA's disciplinary commission over allegations of racism by their fans at last month's Champions League clash against Chelsea in Paris.
The allegations concern "racism, other discriminatory conduct and propaganda" during April 2's home leg of the quarter-final, according to the governing body. PSG won the match 3-1 but went on to lose the tie on away goals.
A UEFA statement released to Press Association Sport read: "Disciplinary proceedings have been opened against PSG on 16 May 2014 for alleged offences concerning 'racism, other discriminatory conduct and propaganda' at their UEFA Champions League quarter-final played against Chelsea in Paris.
"The UEFA control and disciplinary body will decide on the matter on 17 July 2014.
"We do not make any further comment until the official disciplinary decision is announced by end of July."