Confirmed: Peter Quillin has a glass jaw.

Why because I have common sense enough to know that if you can get back up from an Andy Lee right hook and be hit with bombs from a KO artist like Danny Jacobs for a minute without going down, it means you have a pretty decent chin?

Danny as a glass jaw, had Quillin been the one who landed first there's a possibility Jacobs would have went down and not gotten back up, now that's a glass jaw. If they have a rematch next year it won't play out the same way, the opposite could easily happen.