A new feature on MVictors, periodically I’ll take a look at a passage from one of the great books written on Michigan athletics. This week we’ll go to the absolute definitive tome on the Michigan-Notre Dame Rivarly, John Kryk’s Natural Enemies. There are several anecdotes of interest in the book, some I’ve mentioned on these pages before, and I’ll revisit some of these in the future. But for today, here’s are a few selections from Chapter 4 ‘Yost vs. Rockne: 1918:31’. [Note: These are selections from through the chapter, just trying to highlight the feud:] In a nutshell, here’s what each came to think of each other from 1923 to 1931. Rockne, then in his late 30s to early 40s, saw in Yost a “hill-billy” who was forever grinding the religious ax against Notre Dame, who was as crooked as a dog’s hind leg, who was selfish and vain beyond comprehension, who was blindly jealous of Rockne’s own success and ascension to national stardom, and who coached boring, neanderthal football. Yost, then in his mid to late 50s, saw in Rockne a coach who feared the regulatory confinement of a conference, who ran a renegade football factory at Notre Dame, who sought unfair advantages over his opponents, and who continually and deliberately broke football rules with his controversial offense. Kryk…