Former boxing star Jermain Taylor just scored a W in his domestic violence case -- prosecutors dropped the charges against him after the accuser suddenly stopped cooperating with authorities.
Taylor -- the former undisputed middleweight champ -- was arrested back in July 2017 for allegedly biting and threatening to kill his ex-girlfriend, Ashley White, during an argument.
White told police she pepper sprayed Taylor when he took her cell phone -- and he broke it when she tried to call for help. She also claimed Taylor chased her out of the house and down the street.