The man in question is reported to be a 26-year-old Villarreal supporter, and the club has said the offender would have his season ticket revoked and received a lifetime ban from the stadium.
As for punishment, here’s what Alves advocated in an interview with Brazil’s Radio Globo:
“If I could, I would put a photo of the fan on the internet so that he would be shamed.”
“There is racism against foreigners (in Spain). They sell the country as being first world but in certain things they are very backward.”
“I have been surprised by everyone’s support. I did it without thinking. The world has evolved and we must evolve with it.”