Brock Lesnar failed drug test on day of UFC 200Brock Lesnar failed a second drug test on the day of his fight at UFC 200, it was announced on Tuesday.SI Staff|Share on FacebookShare on XAdd us on Brock Lesnar failed a second drug test on the day of his fight at UFC 200, it was announced on Tuesday.Published Jul 19, 2016SI STAFFShare on FacebookShare on XHome/MMA