Grêmio have been disqualified from the Brazil Cup after a section of their supporters racially abused Santos goalkeeper Aranha.
Supporters racially taunted the Santos stopper and shouted "monkey" during Grêmio’s 2-0 loss in their last-16 first leg.
The return leg in São Paulo was postponed so the disciplinary commission of the superior court of sporting justice (STJD) could rule on the case.
“By a unanimous verdict (the decision was taken) to exclude Grêmio from the Brazil Cup and to fine them 50,000 reais (£13,500) and ban from stadiums for 720 days those fans already identified and those that may still be identified,” the court’s statement said.
The match referee has also received a 90-day suspension and been fined 1,600 reais (£430) for not taking the correct action and for not properly reporting the incident in his match report.
Grêmio are expected to appeal to the full nine-member STJD and any hearing would be held within two weeks.
The club, which has not yet commented on the ban, launched an anti-racism campaign last week entitled “Enough”.