Internacional maintained their hopes of a top-four finish in Brazil's Serie A with a 1-0 win over Joinville. The four teams at the end of the season will earn a berth in next year's Copa Libertadores.
The Copa Libertadores is South America's top club competition.
CSKA Moscow loanee Vitinho headed in a 65th-minute winner for the hosts from an Andres D'Alessandro corner on Saturday, Xinhua reported.
The result at the Beira-Rio stadium in Porto Alegre lifted Internacional to fifth in the standings, behind fourth-placed Santos on goal difference with six matches remaining.
In other matches on Saturday, Atletico Paranaense won 1-0 at Fluminense and Santos drew 0-0 at Figueirense.
