LAS VEGAS (AP) — Boxer Lamont Peterson failed a drug test, putting a May 19 light-welterweight rematch in Las Vegas against former title holder Amir Khan in doubt, a Nevada boxing official said Tuesday.
Peterson, 28, the current WBA (super) and IBF light welterweight champion, tested unacceptably high for synthetic testosterone in a urine test administered in March by the Las Vegas-based Voluntary Anti-Doping Association, Nevada Athletic Commission executive Keith Kizer said.
Separate tests on a second sample from the same time were positive May 2, Kizer said, citing a report he received Monday from Dr. Margaret Goodman, VADA chief executive, a former Nevada Athletic Commission member and ringside physician.
"Unless there's some real obvious and legitimate reason for the positive test, he's not fighting," Kizer told The Associated Press.
Kizer said the 28-year-old Peterson isn't currently licensed to fight in Nevada, but would usually get routine approval in the next several days for the fight scheduled next week at the Mandalay Bay resort.
Now, Peterson needs to win an appeal to the five-member commission, which isn't scheduled to meet until May 21.
Kizer said Peterson's Washington, D.C.-based lawyer, Jeff Fried, promised him an explanation by the end of the day Tuesday.
Neither Fried nor Richard Schaefer, chief executive of Khan's fight promoter, Golden Boy Promotions, immediately responded to messages from AP.
Goodman declined to comment Tuesday about Peterson's test results.
Dr. Edwin "Flip" Homansky, a former Nevada Athletic Commission member also affiliated with the Voluntary Anti-Doping Association, declined to comment on Peterson's test. He cast VADA simply as a neutral test administrator.
Kizer said Fried told him Peterson recalls receiving testosterone treatment from a doctor before his first fight against Khan ended in controversy last December in Washington.
"He's saying Peterson's only real fault was that he failed to report therapeutic use of testosterone," Kizer said.
Peterson improved his record to 30-1 with one draw and 15 knockouts.
Khan, 25, a British fighter, dropped to 26-2 with and 18 knockouts.
He complained afterward about the referee's decision to deduct two points from him for pushing. He also complained about an unauthorized man seen distracting a ringside official.