The referee needed police protection as he was surrounded by ranting Vasco players following the final whistle and club president Roberto Dinamite joined the protests at the end of the game in Rio de Janeiro.
Players scuffled with police and stewards who formed a ring around the referee, abandoning their protests after the beleaguered official had been led away.
"We were robbed and it always happens against Flamengo," said Vasco president Roberto, who was angry after Vasco had a penalty appeal turned down in the 78th minute.
"Normally I don't talk about the referee's performance. But when he makes repeated mistakes, the players, no matter how balanced and experienced that they are, lose their patience," he said.
"Ever since I arrived here, I've been treated with affection and that's how I intend to leave here, through the front door," he told reporters.
