Dennis Siver fails UFC 168 drug test
MAR 15, 2014 2:45p ET
Testosterone replacment therapy may finally be banned in some jurisdictions, but the UFC's problems with performance-enhancing drugs are not over. On Saturday, Nevada Athletic Commission chairman Francisco Aguilar told FOX Sports that Dennis Siver tested positive for Human chorionic gonadotropin (hCG) during a drug test taking during the week of UFC 168.
Siver's original test came back inconclusive but the B-sample showed the presence of the banned substance.
Siver (22-9) will now likely be subject to a lengthy suspension and fine. It is also likely that his unanimous decision win over Manny Gamburyan will be changed to a no contest.
hCG is a hormone that is commonly used to stimulate testosterone production. In 2009, Major League Baseball player Manny Ramirez failed a test for the same hormone.
The 35-year-old Siver has competed in the UFC for seven years and has crafted an 11-6 record in 17 trips to the octagon.
After competing most of his career as a lightweight, Siver dropped to featherweight in 2012 and had won three of his four fights in the weight class before failing his Dec. 2013 drug test.
Siyar Bahadurzada, who had been flagged for an inconclusive test at the same event, was cleared of any wrongdoing, as Aguilar told FOX Sports that his B-sample came back negative.