Stephen R. Sylvanie-USA TODAY Sports

3. Robert Drysdale
(100% Drug Test Failure Rate)

Robert Drysdale has only ever fought in the UFC once, but he’s failed 2 drug tests while with the promotion. He’s averaging 2 drug test failures for every fight, that’s not a good ratio.

He was supposed to make his UFC debut in 2013, however a flunked drug test delayed things. He would finally make his debut the next year. After originally defeating Keith Berish via submission, the result was over-turned as Drysdale had flunked yet another drug test. He was released by the promotion shortly after.

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Ian is a MMA writer based out of Toronto, ON Canada. An avid mixed martial arts enthusiast and passionate fan since he was born, Ian has been writing about mixed martial arts for over 5 years.