A 6'9" forward, Vianna represented Brazil at the 1988 Summer Olympics, the 1992 Summer Olympics, and the 1996 Summer Olympics, as well as several other international competitions. He was part of the team which won the 1987 Pan American Games in Indianapolis over the US team. Vianna played briefly for the Dallas Mavericks of the National Basketball Association during the 1991-92 season, becoming the second Brazilian player in that league after Rolando Ferreira.
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