Kelly confirmed to French outlet CNews that they had sent the messages onto the police and Lyon boss Rudi Garcia has vociferously defended his player.
“Fortunately, there is therefore no serious injury, contrary to what his outing on a stretcher might suggest,” Garcia said.
“I am very happy that it is a slight injury and that he can play again very quickly.”
Asked about the abuse Mendes has received, he added: “It shouldn’t exist. We talk about respect, but the word is overused.