Paris Saint-Germain manager Thomas Tuchel has acknowledged that Neymar's behaviour in the aftermath of their Coupe de France final defeat to Rennes was unacceptable.
PSG let a two-goal lead slip en route to a shock penalty shootout defeat, after which Neymar was filmed allegedly hitting out at a fan.
The incident came just a day after Neymar was banned for three Champions League matches due to a rant about VAR, and the Brazilian could now face more time on the sidelines.
Neymar could be hit with a five-game ban, and Tuchel has now criticised his behaviour.
"I did not like it, I did not like it at all. It is not possible to do this sort of thing. Defeat is not easy to accept, but you must show respect. You cannot do that," Tuchel told reporters.
"What I will say is that there are some players who love to win, and others who hate to lose."
PSG had lifted the Coupe de France trophy four years in a row before Saturday's defeat.
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