Brock Lesnar passed multiple other USADA drug tests before UFC 200

Brock Lesnar is facing a USADA anti-doping violation after testing positive for a banned substance in a June 28 drug test. Lesnar, though, also came back clean in multiple previous tests, MMA Fighting confirmed Friday night with USADA.
"We'll get to the bottom of this," Lesnar said in a statement to The Associated Press.
Lesnar provided the AP with copies of three letters notifying him that he had passed USADA drug tests prior to UFC 200. Lesnar was tested eight times in the month leading up to