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Here’s what you need to know about Nandrolone, the performance-enhancing drug found in Starling Marte’s system<p>The Pittsburgh Pirates — and the world of baseball in general — was dealt a big blow Tuesday as center fielder Starling Marte was suspended 80 games after testing positive for a …

Read more at CBS Sports: http://www.cbssports.com/mlb/news/pirates-starling-marte-tested-positive-for-nandrolone-what-is-that-anyway/