Jon Jones’ appeal process has been hit with a setback, as ESPN‘s reporting USADA has confirmed the UFC champ’s B sample, has also tested positive for the anabolic steroid Turinabol.

The news comes several weeks after the MMA world was hit with the bombshell that Jones has been notified of a potential doping violation, following his stoppage win over Daniel Cormier in July. Since then, Jones’ agent confirmed that the light-heavyweight tested positive for Turinabol, but he denied “Bones” knowingly took any banned substances. Jones’ team has also cited the fact he passed several other tests, leading up to UFC 214.

Now Jones’ camp will likely look to prove that the fighter took a contaminated substance. In 2016,  Jones’ team demonstrated that a tainted sexual performance enhancement pill was behind a USADA flag, tied to UFC 200. The star still received a one year suspension, however, for not doing his due diligence.