1997 Copa CONMEBOL finals

In the first match, held in Lanús's La Fortaleza on 6 November 1997, the home team opened the scoreline with Ariel Ibagaza, but Atlético Mineiro tied before the end of the second half with Bruno. An own goal by José Serrizuela in the second half gave the Brazilians the lead, followed by two more goals by the visitors, by Hernani and Valdir (who would finish as top goalscorer in the competition). After the end of the match, Lanús's defender Oscar Ruggeri assaulted Atlético Mineiro's Jorginho, and a brawl ensued.[2] Atlético players and staff were trapped against the fence surrounding the pitch and attacked by Lanús players and supporters. Among other injured players and staff in the confrontation, Atlético's head coach Emerson Leão had to undergo surgery after being hit in the face.[3]

The second match was played at the Mineirão, in Belo Horizonte, on 17 December 1997. Atlético Mineiro fielded four forwards in an attempt to rout Lanús again, but the lack of midfielders in the Brazilian team allowed the Argentine one to advance.[4] Lanús had many youngsters in the squad, but had the match was even, with an Atlético Mineiro goal by Jorginho in the first half and the equaliser by Marcelo Trimarchi in the second. There were security concerns after the brawl in the first match, but no violent incidents occurred in Belo Horizonte.[5]