The International Boxing Federation have exclusively confirmed to WBN that the results of recent drug tests involving 140lb champion Lamont Peterson and challenger Kendall Holt have been sent to IBF head Daryl Peoples.
Peoples is now set to deal with the protagonists involved in the tests to give out the results, which would suggest that they may not be as straightforward as hoped and could spell trouble for either fighter.
Peterson, 29, has already been involved in a steroid scandal on the back of his victory over Amir Khan in December 2011 and has the potential to be smeared with another setback after previously losing his WBA title.
The Washington fighter is set to defend his IBF belt against rugged Argentinian Lucas Mattysse on May 18th in Atlantic City, although that may now hinge of the test results currently in the possession of Peoples.
The fight between Peterson and Holt ended in an eighth round stoppage win for the champion and took place at the DC Armory on February 22.
Editor update 5:25pm (GMT): Reports/rumours are now circulationg that Peterson has indeed failed the test after HCG was found in the sample and the American could now face further sanctions.
Update 11:59pm (GMT): Golden Boy have denied that Peterson has tested positive for any substance.