UFC heavyweight Dave Herman has seemingly been vindicated of a false positive drug test that incorrectly detected marijuana and steroids in his system.

Dave Herman says that a positive test for marijuana has forced him out of his UFC 136 bout with Mike Russow.

The UFC has released a new in-depth preview video for UFC 136. The event features 2 title fights in the light and featherweight divisions.

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Dave Herman, who was scheduled to compete against Mike Russow at UFC 136 on Oct. 8, says he was removed from the card because of failed drug tests. Except he's claiming he's innocent.