 In the following year, Flamengo eliminated Atlético in the semi-finals of the Copa União, winning both legs, 3–2 in the first at the Mineirão, and 1–0 at the Maracanã.The rivalry's biggest rout happened in the 2004 Campeonato Brasileiro, in a match played at the Ipatingão, won by Atlético 6–1.In 2006, Flamengo once again eliminated Atlético in a knockout stage, this time the quarter-finals of the Copa do Brasil, with a 4–1 aggregate score.