Ultimate Fighting Championship (UFC) light heavyweight titleholder, Jon Jones, failed his UFC 214 pre-fight drug test for the banned substance Turinabol, an anabolic steroid that sent “Bones” to the United States Anti-Doping Agency (USADA) doghouse for the second time in two years.

Who’s to blame?

Jones was quickly defended by his manager, Malki Kawa, who insists “Bones” was the victim of a tainted supplement and would not intentionally take a performance-enhancing drug.

Former opponent, Chael Sonnen, told The MMA Hour (via Bloody Elbow) why that scenario is unlikely.

“As far as (Turinabol), you’d have to go to a museum to find that. That’s not something that a person would take. To take that, you would traditionally take that in a stack. I don’t know what Jon did, I’m speculating off of what I’ve done. If they catch something like that, they missed the good stuff. So yeah, he’s got to deal with this. There’s no contaminated substance — this stuff is pretty hard to get. It’s pretty expensive, if you do get it. I have found that commissions and public — the quicker you come clean, the better. That’s one guy’s opinion, but it’s mine. Jones is never going to do that in a million years. He’s going to lie in his inner circle. He’s going to take it to the grave. A lot of times, that will come back to bite you. If you did a dishonest act, sometimes the most honest thing you can do is to say ‘yeah, you got me.’”

Advice this fighter refused to take.

Jones may or may not have been set up by the system, according to this teammate, and is still innocent until the results of his B-sample are returned. If positive, “Bones” will have a formal hearing to determine the severity of his punishment.

Which could be very, very severe.