The Office of the Commissioner of Baseball announced today that Toronto Blue Jays Minor League first baseman Jesus Montero has received a 50-game suspension without pay after testing positive for dimethylbutylamine (DMBA), a stimulant in violation of the Minor League Drug Prevention and Treatment Program. 
The suspension of Montero, who is currently on the roster of Triple-A Buffalo of the International League, will be effective at the beginning of next season.