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Canelo Alvarez's camp blames suspect meat for positive clenbuterol test

Mexican superstar Canelo Alvarez, who is in training for his mega rematch with unified middleweight world champion Gennady Golovkin, has tested positive for the banned substance clenbuterol. Golovkin and Alvarez are scheduled to meet on May 5 (HBO PPV) at the T-Mobile Arena in Las Vegas in a rematch of their hugely controversial draw from September. It is unclear whether the positive test will affect the fight.