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 Arrieta. That's significant because Arrieta, as someone who enjoyed success after struggling for much of his career, has been subject to idle and irresponsible speculation along these lines. As I've written before, there many simpler and more logical explanations for Arrieta's mid-career improvements . Anyhow, Arrieta, pursuant to the Marte suspension, appeared on 670 The Score's Bernstein and Goff in Chicago and discussed these issues. Click through to give a listen to Arrieta's entire appearance, and to get you started, here's a money-quote. In addition to estimating that he himself gets tested 10 to 15 times per year, Arrieta said