Green made his professional debut on November 9, 2002, with a one-round TKO victory against Robert Dykes, in his fourth fight he outpointed Ola Afolabi. Green's career was on the upswing, and he made his (a notable prospect show) debut with a 7-round TKO victory against Rocky Smith. It was perhaps Green's second appearance on ShoBox that gained notoriety for his blistering eighteen second KO victory against Jaidon Codrington. Green stunned Codrington and pinned him to the ropes, then threw brutal combinations before finishing with a left hook to the chin. The punch knocked Codrington unconscious and he fell through the ropes. The one round victory earned Green the 2005 Ring Magazine knockout of the year.