Jon Jones failed a drug test following his comeback victory over Daniel Cormier last month at UFC 214.

The 30-year-old, widely regarded as the No1 pound-for-pound fighter in mixed martial arts, tested positive for the steroid turinabol in an in-competition Usada test from the day before his fight with Daniel Cormier on 29 July in Anaheim, California.

Jon Jones smashes Daniel Cormier to reclaim title, then calls out Brock Lesnar Read more

In that fight, Jones stopped Cormier in the third round to regain the UFC light heavyweight title.

Jones has been stripped of the title and Cormier will reclaim it, according to TMZ, which was first to report the news on Tuesday afternoon before the UFC’s official statement.

UFC president Dana White confirmed the failed test to ESPN but said the decision to strip Jones hasn’t been determined yet.

Turinabol mandates a two-year suspension for first-time offenders from Usada, which administers the promotion’s anti-drug policy. The punishment can be longer for multiple-time offenders.

This marks the latest in a series of controversies for Jones, who first was stripped of his title and removed from the UFC rankings after an arrest on felony hit-and-run charges in April 2015.

Then following his reinstatement, the upstate New York native tested positive for two banned estrogen blockers, clomiphene and letrozole, in the days before his scheduled showdown with Cormier at UFC 200. Jones claimed the failed test was due to a sexual enhancement pill.