Here's the article's opening statement, in classic Klosterman verse:
The ESPN documentary "Ali Rap" (airing Saturday at 9 p.m. ET on ESPN) is built loosely on the premise that Muhammad Ali unknowingly invented rap music, simply by being himself in public. If true, this would mean that rap did not originate (as commonly believed) in the South Bronx during the '70s; it would mean rap was invented in Kentucky during the '60s.
This is hard to accept, as there are very few memorable rap songs about competitive horse racing and/or Rex Chapman.