Jon Jones returns with a sharpened edge, but still hard to know

Though we haven’t seen much of Jon Jones in the last two-and-half-years, there’s been just enough of him out there to sense a refinement in grudges. Given all that time off for reflection, it appears “Bones” did his fair share. The beleaguered champ that’s in Anaheim to fight Daniel Cormier is fresh-faced at 30 years old, (probably) wiser, (mostly) motivated by his legion of haters. He’s sporting a shaved head and a goatee and tossing casual expletives about,