Oswaldo Maestro dos Santos Guimarães (born 23 October 1989) is a Brazilian handball player for Balonmano Torrelavega and the Brazilian handball team.
He won a gold medal the 2015 Pan American Games and competed for Brazil at the 2013 World Championships and 2016 Summer Olympics.Oswaldo dos Santos Guimaraes. cob.org.brOswaldo dos Santos Guimaraes. nbcolympics.com
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