Paris Saint-Germain must face UEFA's disciplinary commission over allegations of racism by their fans in last month's Champions League clash with Chelsea.
UEFA took action against the French champions due to allegations of "racism, other discriminatory conduct and propaganda" during the first-leg of the quarter-final in Paris on April 2.
Chelsea lost the match 3-1, but progressed on away goals with a 2-0 victory at Stamford Bridge.
A UEFA statement 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."
UEFA's disciplinary regulations specify a minimum sanction of a partial stadium closure for a club found guilty of a first offence of racist abuse by their supporters.
Article 14 of the regulations also states: "A second offence is punished with
one match played behind closed doors and a fine of 50,000 euros.
"Any subsequent offence is punished with more than one match behind closed
doors, a stadium closure, the forfeiting of a match, the deduction of points or
disqualification from the competition.
"If the circumstances of the case require it, the competent disciplinary body may impose additional disciplinary measures on the member association or club responsible, such as the playing of one or more matches behind closed doors, a stadium closure, the forfeiting of a match, the deduction of points or disqualification from the competition."