King didn't hit him in the head, that's why.
I'll repeat myself:
"So what if he is bleeding? WB was bleeding because of Rear Admirals attacks lol. That's not something new. Unless you have hard skin naturally like a bunch of special people (Kaido, BM, Germa), you will be bleeding for any direct attack in this manga even if that theoretically shouldnt make a shit because the difference in power. The thing is that Sanji got no real damage, those are like mosquito bites, same with WB.
Moronic argument, no less expected actually :P "