So much for a Jon Jones comeback. Less than a month after his UFC 214 victory over Daniel Cormier, the 30-year-old MMA fighter has, once again, tested positive for a banned substance. Sources say Jones is now at risk of losing his title.

According to MMAFighting.com, Jones tested positive for the anabolic steroid turinabol, which could result in a suspension spanning more than two years. TMZ reports Jones will be stripped of his title with the belt going back to Cormier. UFC president Dana White announced that a decision has not been made.

"He has not been stripped yet but he has got to go through the process," White told the Sun.

The UFC released a statement on the matter:

The UFC organization was notified today that the U.S. Anti-Doping Agency (USADA) has informed Jon Jones of a potential Anti-Doping Policy violation stemming from an in-competition sample collected following his weigh-in on July 28, 2017.

USADA, the independent administrator of the UFC Anti-Doping Policy, will handle the results management and appropriate adjudication of this case involving Jones, as it relates to the UFC Anti-Doping Policy and future UFC participation. Under the UFC Anti-Doping Policy, there is a full and fair legal process that is afforded to all athletes before any sanctions are imposed. The California State Athletic Commission (CSAC) also retains jurisdiction over this matter as the sample collection was performed the day before Jones' bout at UFC 214 in Anaheim, CA, and USADA will work to ensure that the CSAC has the necessary information to determine its proper judgment of Jones' potential anti-doping violation.

This is the second time Jones has tested positive for a banned substance. In 2016, he was slapped with a one-year suspension after clomiphene and letrozole were found. He insisted he failed the test because he took a male enhancement pill without knowing it contained a banned substance.

"I have always maintained my innocence and I am very happy I have been cleared in any wrong doing pursuant to the allegations made that I had intentionally taken a banned substance,” he said in a statement. "I am pleased that in USADA's investigation they determined I was ‘not a cheater of the sport.’ Being cleared of these allegations was very important to me."