Three Fluminense fans were arrested this Monday after attacking an Argentine female Boca fan on Copacabana beach in Rio de Janeiro, police sources reported cited by the Globo news network. According to the complaint, the Argentine woman was hit on the head by a beach chair, just when Conmebol inaugurated the Fan Fest event space in Copacabana for the final of the Copa Libertadores de América that will be played at the Maracaná stadium on Saturday. between Fluminense and Boca Juniors. The attacked Argentine woman was treated at the Copacabana First Aid Unit (UPA), where she was given four stitches, after being attacked along with her partner by Fluminense fans, according to reports cited by Globo. Three suspected Fluminense fans were taken to the Special Tourist Support Police Station, where they were recognized as the aggressors. According to witnesses, the Fluminense fans aimed to steal cell phones and a Boca flag. One of the detainees had a t-shirt from a sector of the organized Fluminense fans called Young Flu Jacaré, according to the G1 news site.