Robert Guerrero vs Orlando Salido
Salido tested positive for the steroid nandrolone after the fight. However, Salido had a follow-up blood test the day after at LabCorp, a nationally recognized blood lab, and the findings were negative of any steroids. It's important to clarify that the substance nandrolone naturally appears in the human body when it is subjected to demanding workouts. Until today it's unknown, why Salido didn't get back the belt after the 2nd. test came negative.