UEFA has opened disciplinary proceedings against Paris St Germain president Nasser Al Khelaifi and sporting director Leonardo following Wednesday's 3-1 Champions League defeat by Real Madrid.

Spanish media reported that Al Khelaifi entered the match referee's dressing room shouting after the match, an incident recorded by a Real Madrid employee with a mobile phone.

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"We confirm that a disciplinary case has been opened. The UEFA Control, Ethics and Disciplinary Body will take a decision in due course," European football's governing body told Reuters .

The French side dominated possession and led 1-0 until Karim Benzema equalised in the 61st minute, a goal PSG coach Mauricio Pochettino felt should have been disallowed because goalkeeper Gianluigi Donnarumma was fouled in the build-up.

PSG, which lost the last-16 tie 3-2 on aggregate, did not immediately respond to a request for comment.