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MLB chief: Science may be behind increased drug positives

Improved science could be a reason behind baseball's increase in positive drug tests.

There have been eight suspensions announced this year under the major league program for positive tests for performance-enhancing drugs, one more than in all of 2015, and reigning NL batting champion Dee Gordon of the Miami Marlins was among those penalized. There were just two in 2014 and none in 2013.

"The windows of detection on certain substances have been lengthened," baseball Commissioner Rob Manfred said Thursday after a quarterly owners meeting. "That may be one on explanation for what we're seeing."

Manfred also said speculation that NL Cy Young Award...