The Ultimate Fighting Championship on Saturday in Las Vegas keeps its content machine churning with an event that appears to be a far cry from its predecessor. Of the 12 competitors on the prelims, only three sport winning UFC records, although it improves slightly when moving to the main draw. Betting odds are fairly close for the majority of the show, with just two of the 12 matches featuring a favorite at -250 or above. The UFC on ESPN 39 edition of Prime Picks features a former champion who should play spoiler as a sizable underdog, a heavyweight desperation match and two slight female favorites who still present some value on their lines.