He finally fights somebody who can stand up to his punch and it threw him off his game, what's the big deal. This guy is only ~23 years old, and has some legit talent. I think he'll recover from this. The crowd will always go wild for the underdog BTW.
this is just like that russian dude who had like 24 W's and 23 K.O.'s and got KTFO by the best dude he has fought.
That reminds me of Duane Bobick, undefeated with all those Ko's getting blasted by Ken Norton in one round.