Blood in the Cage by L. Jon Wertheim. It's a history of the UFC and of Pat Miletich in particular. For an MMA book it is actually quite well-written.
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"I'll never forget the moment during the lovely Alyssa Allure's scene in 'American Bukkake' where the fellow got out of his wheel chair to ejaculate on her face. It was grotesque but had a certain frisson." -Sock