Club career
Brazil - Roberto Firmino - Profile with news, career statistics and history - Soccerway
https://int.soccerway.com/players/roberto-firmino-barbosa-de-oliveira/103265/fussballdaten.de - Wikipedia
https://en.wikipedia.org/wiki/Fussballdaten.dehttps://www.fussballdaten.de/person/firminoroberto/
https://www.fussballdaten.de/person/firminoroberto/