Las Vegas, NV, United States (4E Sports) – Recently retired UFC fighter Chael Sonnen has been tested positive for four banned substances, including human growth hormone (HGH), the Nevada State Athletic Commission confirmed.
Aside from HGH, NSAC chairman Francisco Aguilar said the 37-year-old Sonnen was also tested positive for erythropoietin (EPO), anastrozole and human chorionic gonadotropin (hCG) during a June 5 test.
Sonnen announced his retirement earlier this month after a previous failed drug test was announced.
Sonnen (28-14-1) was scheduled to fight Vitor Belfort at UFC 175 on July 5 in Las Vegas but was pulled from the card June 10 after the NSAC confirmed he had failed a random test administered on Memorial Day weekend in Las Vegas.
That initial test produced a positive result for anastrozole and clomiphene, both of which are classified as antiestrogenic. Sonnen announced his retirement from MMA the day after the test results were made public.
On June 5, however, the NSAC ordered a second blood and urine test from Sonnen, who was still licensed to compete at that time. The results of those tests were not available until this week.
On June 17, the NSAC temporarily suspended Sonnen’s license to fight in the state of Nevada. The commission most likely will take disciplinary action against Sonnen at a meeting July 23. Both failed tests will be taken under consideration.
“We were made aware of a second random test conducted earlier this month which resulted in a positive test for additional banned substances,” the UFC said in a statement Saturday night. “Chael will have the opportunity to appear in front of the Nevada athletic commission next month. Through a statement released to media tonight, he’s pledged to cooperate.
“Our stance on the subject remains absolutely the same. We support the commission and will continue to ensure all UFC competitors compete on an even playing field, free of performance enhancing drugs and banned substances,” the UFC statement added.
Sonnen had stated he had taken the antiestrogenic substances to avoid side effects from getting off testosterone replacement therapy, which the NSAC banned from combat sports earlier this year.
A three-time UFC title contender, Sonnen is scheduled to meet Andre Galvao in a no-gi jiu-jitsu match at Metamoris 4 on Aug. 9 in Los Angeles.