Chael Sonnen UFC 167 Post_9376Chael Sonnen stepped into retirement earlier this month after testing positive for two prohibited substances and voluntarily admitting to a third following a random drug test administered on May 24 in Las Vegas.

On Saturday, it came to light that Sonnen tested positive again in blood and urine samples given at another random drug test administered on June 5 in Portland, Ore.

Both tests were administered at the behest of the Nevada Athletic Commission because Sonnen at the time had been scheduled to fight at UFC 175 on July 5 in Las Vegas. NAC chairman Francisco Aguilar confirmed the second drug test to MMAWeekly.com following an initial report by MMAFighting.com.

It’s not that surprising that Sonnen would test positive again less than two weeks after the first failed test. It is surprising, though, that two of the four substances he tested positive for on the Portland-administered drug test were different than those the first test showed.

The May 24 test showed that Sonnen tested positive for Anastrozole and Clomifene, both of which can be utilized to help treat men with hypogonadism, which Sonnen claims to have. He also voluntarily admitted to taking Human Chorionic Gonadotropin (hCG).

What he didn’t voluntarily admit to, and what didn’t show up on the May 24 test results, were human growth hormone (hGH) and recombinant human erythropoietin (EPO). Both are performance-enhancing substances that are prohibited by the World Anti-Doping Agency, which is the standard the NAC follows.

More commonly known for its use in professional cycling by the likes of Lance Armstrong and numerous others, EPO stimulates red blood cell production in the body, which increases the amount of oxygen that blood can carry to muscles. This stimulation increases endurance and recovery.

“hGH is known to act on many aspects of cellular metabolism and is also necessary for skeletal growth in humans,” according to WADA’s description of the substance. “The major role of hGH in body growth is to stimulate the liver and other tissues to secrete insulin-like growth factor (IGF-1). IGF-1 stimulates production of cartilage cells, resulting in bone growth and also plays a key role in muscle and organ growth.”

As with the first failed drug test in Las Vegas, Sonnen appears to be saying that he was prescribed medications that also caused the second failed test in Portland.

“Yes, the Commission is aware of other prescribed medications I was taking and I will not challenge their allegations,” he told MMAFighting on Saturday. “I will cooperate with the Commission and look forward to having a dialogue about how fighters who transition off TRT can avoid violating any rules.”

In the wake of the first failed test, Sonnen announced his retirement from mixed martial arts and the NAC temporarily suspended him pending a full disciplinary hearing at the commission’s next meeting, which is slated for July 23 in Las Vegas.

Follow MMAWeekly.com on FacebookTwitter and Instagram.

view original article >>
Report here if this news is invalid.

Related News

Hot Tweets: Anderson Silva Blamed Sex Pills for Failed Drug Tests and Twitter Reacted

  • 15 days ago
  • 46 views

Anderson Silva blamed sex pills for his positive PED tests, so of course Twitter reacted to that. read news >>

UFC 189 drug test results come back clean, as does sort-of random test for Jose Aldo

  • 18 days ago
  • 22 views

Nevada State Athletic Commission (NSAC) today (finally) released the drug test results for UFC 189, which took place inside MGM Grand Garden Arena in Las Vegas, Nevada, on Sat., July 11, 2015. Result read news >>

'Sexual performance' medication defense planned for Anderson Silva steroids hearing

  • 17 days ago
  • 41 views

UFC legend Anderson Silva's planned defense of his positive drug test results for banned substances involves something of a quite personal nature. In two days, UFC middleweight and consensus all-time read news >>

Anderson Silva Defense Cites 'Tainted' Sexual Performance Drug for Positive Test

  • 16 days ago
  • 29 views

The attorney of Anderson Silva will claim a “tainted” sexual performance medication was the reason he tested positive for performance-enhancing drugs, with the MMA star set to stand in front of the N read news >>

Attorney: Anderson Silva's failed drug test result of tainted 'sexual performance' drugs

  • 16 days ago
  • 14 views

With Anderson Silva set to go in front of the Nevada State Athletic Commission tomorrow for his hearing on his failed UFC 183 drug test it appears we now know what the MMA legend’s defense will be.Fi read news >>

Anderson Silva Blames Positive Drug Tests on Sexual Performance Supplements

  • 16 days ago
  • 18 views

Anderson Silva's defense for testing positive to steroids before and after his UFC 183 bout against Nick Diaz is that the fighter took tainted sexual performance supplements. read news >>

Nick Diaz expected to stand before NAC in September for failed UFC 183 drug test

  • 15 days ago
  • 1 views

After another delay to Nick Diaz's NAC hearing for a failed drug test at UFC 183, it's expected that the Californian will stand before the commission in September. On Monday it was announced that Nic read news >>

Anderson Silva suspended one year, heavily fined by NSAC for UFC 183 positive drug test

  • 15 days ago
  • 9 views

Former Ultimate Fighting Championship (UFC) middleweight titleholder Anderson Silva appeared before Nevada State Athletic Commission (NSAC) earlier today (Thurs., Aug. 13, 2015) to answer for a coupl read news >>

Anderson Silva suspended one year for failed UFC 183 drug tests

  • 15 days ago
  • 4 views

The Nevada Athletic Commission voted unanimously to suspend former UFC middleweight champion Anderson Silva for one year as punishment for a pair of failed drug tests in relation to his Jan. 31 bout read news >>

Anderson Silva's questionable explanation leads to harsher penalty (Yahoo Sports)

  • 15 days ago
  • 14 views

From Yahoo Sports: Commissioners probing Silva about failed drug tests in January didn't find him forthcoming about a particular substance read news >>