Research: McGwire Before and After Steroid Use

Mark McGwire Steroids Splits

Mark McGwire admitted Monday he used steroids on and off for almost a decade, including his record setting season of 1998. According to his statement, McGwire began using in 1993 following an injury. The number show a distinct difference in production before and after. Following the 1993 season, McGwire's AB-per-HR was almost cut in half and his batting average climbed 28 points.