Golovkin, of course, was originally scheduled to take on Canelo Alvarez, but Alvarez failed multiple drug tests and has since been suspended for six months.
A complaint, filed last month, related to two dates in February on which Alvarez submitted out-of-competition samples that were positive for Clenbuterol, a banned substance that helps burn fat and increase lean muscle mass. His May 5 fight with Golovkin was called off earlier because of the doping, but with the Nevada Athletic Commission suspension retroactive to February he would be available for a possible fight with Triple G on the traditional Mexican Independence Day weekend in September.
Golovkin never stopped training and clearly has no interest in cutting Alvarez any slack, nor does he give much credence to Alvarez's stated explanation for two positive drug tests.
The IBF have urged Golovkin to fight mandatory challenger Sergiy Derevyanchenko but instead he has arranged to take on 36-3-1 fighter Martirosyan.
The fight would have been a rematch of their bout last September, where Alvarez got a controversial draw in a fight many thought Golovkin had clearly won.More news: Scouts Have Overwhelmingly Great Things To Say To About Saquon Barkley
"Vanes Martirosyan is now the most important fight of my career".
"Gennady is a proud champion of the IBF and, as a unified world champion, he looks forward to remaining champion for a long time and defending his middleweight titles many more times", Loeffler said.
"I am truly shocked about what has happened and for those who have doubts and suspicions about my integrity I have always been and always will be [a] clean fighter", he said. "The Nevada commissioners agreed to it Wednesday".
The NAC ruled that Alvarez did not intentionally inject Clenbuterol.
Alvarez's team has claimed that the clenbuterol levels of the fighter were consistent with those that have been found in athletes, who have eaten contaminated meat.