"Disciplinary proceedings have been opened following the UEFA Champions League Round of 16 second leg match between Paris Saint-Germain and Manchester United FC (1-3), played on 6 March in France," UEFA said in a statement.
"Player Neymar Junior - insulting / molesting acts against match official (statements made by the player following the above-mentioned match) - Art. 15 (1) (d) of the UEFA Disciplinary Regulations."
If the Brazilian is found guilty, he could be suspended for three matches in the competition for insulting match officials.
UEFA's Control, Ethics and Disciplinary Body will look into the case and a date for the hearing is yet to be confirmed.
PSG coach Thomas Tuchel had said after the game that he understood Neymar's anger and defended his comments, saying they were made in the heat of the moment.
(Reporting by Rohith Nair in Bengaluru; Editing by Christian Radnedge)
