Gabriel Barbosa scored the winner to help Flamengo beat 10-man Athletico Paranaense in the Copa Libertadores final in Ecuador.
Paranaense missed an early chance when Alex Santana sent a close range shot just high, before they had Pedro Henrique sent off for a second booking.
Minutes later, Barbosa side-footed in a low cross at the far post.
Paranaense struggled to break down fellow Brazilians Flamengo as they secured a third Copa Libertadores.
Their previous victories came in 1981 and 2019.
Barbosa, who scored six goals in this season’s competition, could have had a second goal but had an effort saved when played through on goal.
Paranaense, managed by former Brazil and Chelsea manager Luiz Felipe Scolari, had ex-Manchester City midfielder Fernandinho in their side but were beaten in their first Copa Libertadores final since losing to Sau Paulo in 2005.