This is the second time Jones has tested positive for using banned performance-enhancing drugs. The 30-year-old was scheduled for a bout with Cormier at UFC 200 in July 2016, but tested positive for two banned substances , clomiphene and letrozol, and was banned for one year . That failed test came just three days before the event, leading to him being pulled from the fight. According to TMZ, Jones could face up to a 4-year ban as a multiple-time offender. Testing positive for Turinabol carries up to a 2-year suspension from the USADA for first-time offenders, according to MMA Fighting.