Neymar has been given a three-match ban, with an additional two games suspended, for hitting a fan after PSG's French Cup final defeat to Rennes.
The Brazilian took issue with a fan filming him as he went to collect his losers' medal after Rennes shock victory.
Rennes prevailed on penalties 6-5 after a 2-2 draw as PSG missed out on the silverware.
The supporter later uploaded the video online with the caption 'Neymar who gave me a potato' - French slang to mean he received a punch.
PSG boss Thomas Tuchel hit out at Neymar after the incident.
He said: "I did not like it, I did not like it at all. "It is not possible to do this sort of thing.
Thomas Tuchel hits out at Neymar as PSG superstar faces potential eight-match ban
"Defeat is not easy to accept, but you must show respect. You cannot do that."
The incident capped a disappointing season for PSG, despite romping to another Ligue 1 title.
They were dumped out of the Champions League in the last 16 by Manchester United before suffering humiliation in the cup final against Rennes.
Neymar became the most expensive player in history when he moved to the French capital from Barcelona in 2017.
He has scored 50 goals in 57 appearances for the Parisians so far.
