NYON: UEFA have opened disciplinary proceedings on Neymar after his foul-mouthed rant about referees following Paris Saint-Germain's controversial Champions League exit at the hands of Manchester United last week, the governing body announced on Wednesday.

"A disciplinary investigation has been initiated ... in connection with the comments made on social media by the Paris Saint-Germain player Neymar following the above-mentioned match," UEFA said in a statement.