By Chad Cooper Twitter @thechadcooper On a day that UFC Hall of Famer Randy Couture suffered a heart attack, Nate Diaz informed the world Thursday night via his Twitter account that he would not make his highly-anticipated fight against Jorge Masvidal next Saturday in NYC because of a failed drug test due to “elevated levels” from “some tainted supplements.”  The fight was scheduled to take … Continue reading Nothing New – Nate Diaz Refusing to Fight due to Tainted Supplement