2. Anderson Silva
Anderson Silva was long considered the greatest mixed martial artist on the planet. Now, it’s unclear how history will treat Silva considering his multiple drug test failures in recent years.
Silva failed a drug test in 2015 for two anabolic steroids. He would claim he received a tainted sexual aide supplement which caused the failed test. He failed his second test on October 26th, 2017.This time the presence of just one synthetic steroid was found in his system.
At one time Anderson Silva was the consensus greatest fighter of all time. Now, nobody is too sure what to think of his career.








