LAS VEGAS — UFC light heavyweight Chael Sonnen has failed a random drug test in the state of Nevada and will not fight Vitor Belfort at UFC 175 on July 5.
The Nevada State Athletic Commission randomly tested Sonnen last month while he was in Las Vegas to attend a UFC news conference. Results confirmed the presence of two illegal substances, Anastrozole and Clomiphene.
NSAC chairman Francisco Aguilar confirmed the test results to ESPN.com on Tuesday.
Al Powers for ESPN
Chael Sonnen has failed a random drug test in the state of Nevada and will not fight Vitor Belfort at UFC 175.
UFC officials also acknowledged the situation.
“UFC officials acknowledge irregularities in a recent random test,” the promotion stated. “Chael is planning on addressing the matter this afternoon.”
Sonnen (28-14-1) is expected to discuss the test results on Fox, where he serves as a UFC analyst. The substances Sonnen tested postive for are classified as anti-estrogenic.
Anastrozole is used to treat early stages of breast cancer. Clomiphene is used in cases of female infertility.
READ THE REST OF THE ARTICLE HERE.