Jarrell Miller has come out firing, in defense of the recent claims that he took a performance enhancing drug to prepare himself for the world title clash with IBF, IBO, WBA, WBO heavyweight champion Anthony Joshua.

On Wednesday, it was revealed that Miller was denied a license to box by the New York State Athletic Commission (NYSAC) over a failed drug test, which crushed his planned June 1 bout with Joshua.

Because of the positive drug test, the NYSAC refused to issue Miller a license to box in their state.

The Voluntary Anti-Doping Association (VADA) revealed on Tuesday that Miller had tested positive for a banned substance following a test conducted on March 20.

It should be noted that Miller previously served a nine-month ban from the California State Athletic Commission after testing positive for methylhexaneamine  in 2014. At that time, Miller was taking part in a kickboxing bout.

Miller took to social media and fully denied that he ever took a performance enhancer for the fight.

"I want to thank all of my supporters who have stood by me since day one and especially during this extremely difficult time. I have not been tuned in to social media and any other media outlets to focus and channel all of my energies into working hard with no distractions," Miller stated on social media.

"I am absolutely devastated upon hearing the news my boxing license has been revoked in NY State and I will be vigorously appealing this decision. I have never knowingly taken any banned substance and when I found out the news last night I was totally shocked.

"My team and I stand for integrity, decency & honesty and together we will stand to fight this with everything we have! This was a voluntarily test that I was very happy to do and these results came just one week after another voluntarily test that I had taken which was completely clean. I refuse to just lie down and let my dream be taken away from me when I know in my heart that I've done nothing wrong.

"15 years of hard work. I'm warrior .. I don't need a banned substance. Remember don't believe everything you hear and see. The facts will prevail and I shall be vindicated. I don't have anything to hide and the truth will make itself known."