Brazil's Copa America campaign got off to a stuttering start as they were held to a 0-0 draw by Costa Rica in their opening Group D game.
Vinicius Jr says that racists should be "afraid" in light of three Valencia fans being sentenced to eight months in prison for abusing him during a match last year.
LaLiga announced on Monday that three spectators who engaged in racial abuse towards Real Madrid forward Vinicius Jr during a match in Valencia last year have each received eight-month prison sentences.
Real Madrid have filed a complaint with the Spanish legal authorities after "racist and hateful insults" appeared to be directed at their striker Vinicius Junior by Atletico Madrid and Barcelona fans this week.
Real Madrid forward Vinicius Jr faces a spell on the sidelines after damaging a hamstring.
Real Madrid forward Vinicius Jr rates Barcelona's Ronald Araujo as the best defender he has ever faced.