Thiago Silva tests positive for marijuana
``Thiago Silva tested positive for marijuana metabolites following his bout at UFC on FUEL TV in Macau. The UFC organization has a strict, consistent policy against the use of any illegal and/or performance-enhancing drugs, stimulants or masking agents. Silva has admitted to taking the banned substance and has agreed to participate in an approved drug-rehabilitation program and serve a six-month suspension retroactive to the November 10 event. He must pass a drug test upon completion of the suspension before receiving clearance to fight again.''
A Top Rank Inc. spokesman says middleweight boxer Julio Cesar Chavez Jr. tested positive for marijuana after his first professional loss last weekend in Las Vegas.