By Will Griffee For Mailonline
Published: 09:34 BST, 18 April 2019 | Updated: 09:50 BST, 18 April 2019
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Jarrell Miller says he has 'never knowingly taken any banned substance' and intends to appeal against the decision to revoke his licence following an adverse doping test.
Miller, who was due to fight British heavyweight Anthony Joshua in his native New York on June 1, produced an adverse result for a metabolic modulator in testing carried out on March 20 by the Voluntary Anti-Doping Association (VADA).
He retains the right to request another sample be tested and to reapply for a licence, and has now stated his intention to 'vigorously appeal' against the decision.
Jarrell Miller posted this picture on Instagram along with a lengthy denial of knowing use
GW1516 was developed in the 1990s as a treatment for diabetes, obesity and cardiovascular disease.
It works by forcing skeletal muscle to use fat rather than carbohydrates as an energy source.
While it is used by some to accelerate fat loss, it also has real benefits as an endurance aid for athletes.
The substance was added to the World Anti-Doping Agency's banned list in 2009 and forces the body to use fat instead of carbohydrates for energy, aiding endurance.
'I am absolutely devastated upon hearing the news my boxing licence has been revoked in NY State and I will be vigorously appealing this decision,' Miller wrote on Instagram.
'I have NEVER
