6. Josh Barnett
Barnett’s most recent drug-test failure occurred in December of 2016. He has been proactive in his dealings with USADA, however. Most recently, he was able to successfully take USADA to an arbitrator and have his two-year suspension reduced to a public reprimand.
The problem is it has taken Barnett a long time to go through the process to have his suspension overturned. As of this writing, it is been over a year and a half since Barnett has been inside the cage. Now at 40 years of age, its possible USADA robbed Barnett of the last few fights of his career.
