For professional athletes, submitting to urine tests is a part of life. But while we hear all about the results of the tests when they turn up positive, we don't hear much about the process of the testing. In the above video, Matt Serra, who will fight Matt Hughes at UFC 98, tells us he's been randomly selected, and we see him in the waiting room before his test. Serra also discusses his training, says he's in great shape, and continues his war of words with Hughes. (Warning: Language not safe for work.)
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