Mike and Bill delve into some recent history, Mark McGwire's assault on the rookie record book in 1987. This week, 30 years ago, McGwire hit his 38th of 49 homers, breaking the AL record and tying the MLB mark. They discuss McGwire's prolific amateur career, his incredible 1987, the context in which he hit those home runs, and the likelihood of one or more rookies (Aaron Judge or Cody Bellinger) breaking the record again.