Jarrell Miller has launched a stinging attack on Eddie Hearn following Conor Benn‘s failed drugs test. Benn, 26, has denied any wrongdoing despite returning an adverse finding for the banned substance clomifene, which scuppered his ‘Battle of the Brits’ showdown with Chris Eubank Jr at London’s O2 Arena. Earlier this month, it emerged Benn failed a Voluntary Anti-Doping Association (VADA) drug…