7. Anderson Silva
Silva is one of the greatest MMA fighters of all-time. After recovering from a gory leg break, he returned to action in late January 2015 against Nick Diaz. Silva won the fight but then tested positive for two banned steroids. In short, this stunned the world but the Brazilian denied knowingly ingesting the substances. Meanwhile, he pointed to his use of sexual enhancement pills as the source of the substances.

He tried to say that these sexual enhancement pills caused him to fail the drug test. The UFC’s anti-doping partner USADA suspended the former middleweight champion for a year after determining that he had ingested contaminated substances. One of the silliest excuses in the sport worked. Furthermore, the commission overturned the fight’s result to a no-contest because Diaz tested positive for marijuana.