Sources: Antonio Tarver fails a second drug test http://t.co/XA9XEijr7N

— Chris Mannix (@ChrisMannixSI) October 19, 2015

As first reported by Chris Mannix of SI.com, Antonio Tarver tested positive yet again for a banned substance this time prior to the Steve Cunningham bout earlier this year. Tarver, who failed a drug test prior to his bout with Lateef Kayode in 2012 suffered a suspension and lost his commentating gig on Showtime Sports calling the action for boxing.

Per the report, Tarver tested positive for synthetic testosterone (think TRT for MMA fans). At the present moment, Tarver is a commentator for Premier Boxing Champions on Spike TV.