Quote Originally Posted by AssertnFailure
I don't recall punches actually doing that much to him........
I seem to remember him getting really bloodied up during a fist fight. I don't remember who he fought exactly. Perhaps it was his second fight with Crocodile (who is still the baddest bad guy in One Piece). I'm pretty sure it happened, since I remember being really surprised that Luffy got hurt that bad. (In fact, now that I think of it, I'm pretty sure it was the second Crocodile fight since Luffy used his own blood as a liquid to counteract Crocodile's sand powers)

At any rate, here's my prediction for the Luffy / Enel fight. Luffy is made of rubber, which burns. So I predict that Enel is going to come up with a technique to heat up the ground beneath Luffy's feet or even the air around his body to try to burn Luffy up.