Griffin admints to failed drug test for Xanax at UFC 101

"I failed my drug test I think for Xanax," Griffin said. "I had a doctor's prescription, I was just, I didn't do it before the fight, I did it the night before, I was nervous and I couldn't sleep."

Griffin's test failure was not made public by the Pennsylvania State Athletic Commission after the Aug. 2009 event. Asked why he never revealed this info, Griffin said "What's the point? Why add humiliation to a bad situation?"