Newcastle's Joelinton says "many things" need to change in the fight against racism in football.
The 26-year-old midfielder, who is currently on international duty with Brazil, said he suffered racist abuse after a defeat by Arsenal last month.
He said the racism was not on the pitch, but he had received "messages with racist insults" after the match.
He added: "It's an important moment to speak about racism. It is not something happening now, but for a long time."
Joelinton, who could win his first Brazil cap in this week's friendlies against Guinea and Senegal, said: "In the 21st century, we still see things like that.