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

Under-suspension Ricardo Abreu notified of another potential USADA violation

  • 25 days ago
  • 2 views

Already serving a suspension for a failed drug test, Ricardo Abreu today was notified about another potential doping violation.Filed under: News, UFC read news >>

Watch Anderson Silva Destroy Chael Sonnen in Their Rematch (UFC 208 Free Fight) | MMAWeekly.com

  • 19 days ago
  • 8 views

Anderson Silva extended his consecutive title defenses record to 10 when he defeated Chael Sonnen at UFC 148. Silva faces Derek Brunson at UFC 208 on Saturday. read news >>

Brock Lesnar Retires from UFC, Exits Drug-Testing Pool | MMAWeekly.com

  • 12 days ago
  • 13 views

Brock Lesnar has retired from the UFC, effectively removing himself from the USADA drug testing pool. read news >>

Dana White Addresses Tito Ortiz vs. Chael Sonnen Fixed Fight Claims | MMAWeekly.com

  • 26 days ago
  • 98 views

Was Tito Ortiz's final fight a work? Was the fix in? UFC president Dana White weighs in. read news >>

Thiago Alves Moves Back to Welterweight at UFC 210 | MMAWeekly.com

  • 9 days ago
  • 7 views

UFC veteran Thiago Alves is moving back to the welterweight division at UFC 210 after a failed attempt to make lightweight in his last outing. read news >>

Scott Coker Recounts Chael Sonnen and Tito Ortiz Offering to Fight Fedor (video) | MMAWeekly.com

  • 7 days ago
  • 12 views

Bellator president Scott Coker recounts how Chael Sonnen and Tito Ortiz offered to step up and fight Fedor with just a few hours to go until fight time. read news >>

UFC 209 Card Finalized with Heavyweight Replacement and Two New Bouts | MMAWeekly.com

  • 3 days ago
  • 167 views

The UFC 209 fight card was finalized on Thursday when the promotion confirmed one replacement fighter and added two new bouts to the event. read news >>

Daniel Omielanczuk Found to be 'Without Fault' After Testing Positive in UFC Anti-Doping Case | MMAWeekly.com

  • 20 days ago
  • 33 views

USADA announced on Monday that UFC athlete Daniel Omielanczuk has tested positive for a prohibited substance, but found "without fault." read news >>

UFC Fight Night 104 Suspensions: Seven Fighters Suspended Indefinitely | MMAWeekly.com

  • 20 days ago
  • 50 views

The UFC Fight Night 104 medical suspensions were released by the Texas Department of Licensing and Regulation on Monday. read news >>

ONE Championship Bantamweight Casey Suire Killed in a Motorbike Accident | MMAWeekly.com

  • 20 days ago
  • 13 views

ONE Championship bantamweight Casey Suire was killed in an accident in Bali recently. read news >>