Veteran UFC fighter Chael Sonnen has failed a random drug test and been forced out of a recently booked UFC 175 fight with Vitor Belfort. Sonnen tested positive for two banned substances, ESPN.com first reported, and has been removed from the July 5 pay-per-view event. The Nevada State Athletic Commission couldn’t not immediately be reached for confirmation. According to the report, Sonnen tested positive for anastrozole, a non-steroidal aromatase-inhibiting drug used to treat breast cancer, and clomiphene, which is used to treat female infertility.
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Chael Sonnen fails random drug test, forced off UFC 175 card – MMA Junkie