Canelo Alvarez has tested positive for trace levels of Clenbuterol, as read in the statement by Oscar De La Hoya's Golden Boy promotions. Clenbuterol is a banned substance often used by athletes to cut body fat while retaining muscle mass. It's banned by every major doping agency. As of today the schedlued fight vs GGG is still set for Cinco de Mayo, and so far there has been no comment from either GGG's camp or Oscar De La Hoya