Defending champions Palmeiras rose to the third spot in Brazil's Serie A standings with a 1-0 win over Gremio.
The hosts had to thank Gremio midfielder Machado after the 21-year-old turned the ball into his own net at the Pacaembu stadium on Saturday, reports Xinhua news agency.
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The result left Palmeiras with 19 points while Gremio missed the chance to narrow the gap on leaders Corinthians, remaining second with 22 points.
In the other match, a second-half strike from Thiago Maia earned Santos a 1-1 away draw with 10-man Atletico Goianiense.
Andrigo put the hosts ahead in the 12th minute but they lost Joriginho when the midfielder received a second yellow card for a bad foul early in the second half.