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The Cubs right-hander appeared on 670 The Score’s Bernstein and Goff in Chicago<p>All of MLB, it seems, is back on the topic of PED testing in baseball ever since Pirates outfielder Starling Marte got popped for 80 games . Among those sounding off is Cubs right-hander and 2015 NL Cy Young winner Jake …

Read more at CBS Sports: http://www.cbssports.com/mlb/news/jake-arrieta-says-he-was-drug-tested-15-20-times-per-year-says-system-is-working/