Flamengo vice-president Flávio de Araújo Willeman told the hearing that the club had signed sponsorship agreements with two betting operators under Brazil’s previous regulatory framework.
He estimated that Flamengo could lose R$430 million in revenue, potentially affecting employees, athletes and Olympic sports programmes.
Fluminense representative Matheus Reis e Montenegro also criticised the abrupt restrictions, claiming the measure had affected R$200 million in club revenue.
Montenegro said:
In Brazil, something that was regulated was prohibited, and we were given 10 days. Ten days. It is impossible.
According to the STF’s official hearing summary, clubs raised concerns about sponsorship agreements, stadium advertising rights and broadcasting revenue.
The figures reflect the clubs’ own assessments, not independently verified financial losses.