The short version of this was that Peterson was caught taking synthetic testosterone and that cost him a million dollar payday and his rematch with Amir Khan.
Khan went on to be KOed by Danny Garcia while Peterson was tied up in the appeals process.
He won his appeal to keep the belt, but he still has some hurdles to clear.
Lamont Peterson, who admitted to being implanted with the banned substance synthetic testosterone, will be allowed to keep his IBF junior welterweight title, the New Jersey-based sanctioning body announced Friday.
The IBF also ordered that Peterson (30-1-1, 15 KOs) make his mandatory defense against former titleholder Zab Judah (42-7, 29 KOs), who knocked out Vernon Paris in the ninth round on March 24 in an elimination bout to earn the title opportunity.
Just because the IBF has allowed Peterson to retain his world title does not necessarily mean the Nevada commission, or any other commission, will license him after admitting to using a banned substance. Peterson did not disclose the usage or seek a therapeutic exemption from Nevada prior to the May fight that was canceled.