Lamont Peterson and Amir Khan were scheduled to meet on May 19 in a rematch of Peterson's controversial split decision win on December 10. Scratch that. In a random test administered in March, Peterson tested positive a banned substance - synthetic testosterone - so the bout is off.
So far there has been no discussion of setting a new date for the rematch. Instead, Khan's camp is trying to have Peterson's win changed to a no contest, in which case Khan would likely get his titles back.

Comments
Should there be discussion of a lifetime ban here? After all, if it is proven that a Performance Enhancing Drug has been used, that has big implications for boxing. Enhancing your performance in boxing invariably results in an opponent getting hit harder and more often. If feels like there is much more at stake than in say track and field or cycling.
Good afternoon, Aaron Braunstein CEO of Rolling Thunder Pro., Inc. All of our staff @Team Rolling Thunder Productions concur, with Nancy Reagen” just say NO”. Always abide by the law. One of the important fundamental facts of Prizefighting” We are not CPA’s, lawyers” We are Fighters” We take our differences, opinions to THE RING not to the “. Amir Khan is a good Prizefighter, Khan lost a lot of points with our young staff. Amir Khan: you got a problem??? Take it to the Ring, not Court”. Prizefighter does his talking in The Ring”. 2 of Khan’s opponents whom I respect & love are Brooklyn’s finest. Paulie” The Magic Man” Mallinagi, Dimitry “Star Of David” Salita. Hey Khan you don’t see” Brooklyn Boys”going to court like little cowards. I will promote your match with Peterson, Prizefighter who failed a test. History: Sugar Shane Mosely a great champion, sometimes guys make mistakes, Steroids leave your body in several days . Lighter weights, featherweights to Middleweights:(Khan a Jr. Welterweight 140 lbs.), need SPEED. Steroids favorite of Bodybuilders, actually inhibit the lighter weight classes by adding extra muscle that weighs the Boxer down. Amir Khan, Peterson beat you man/ man, until you Box him to Real Boxing fans courts are for Sissy’s.” Keep on Punchin’”. Radio Knight Aaron B.
I DONOT LIKE THAT. WHAT IF YOU CAN NOT BE TESTED WHAT THIN. GIVE ME A REPLY. THANK YOU.
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Boxing : is the only clean Sport. NFL, NBA, MLB, NHL, Tennis, et.al in all the other Sports The Players Unions only allow Random Testing. In The Boxing Industry the Prizefighter is tested before the bout & after the Bout. Therefor The Boxer knows not to mess with anything. On occasion , an old-time trainer will give his fighter some secretive vitamin & then unintentionally things occur. Cut- men The old- time cut men each has a Top Secret Formula that he never gives out. Creates a possibility