I don't care who you are, you get hit in the junk, you only think of whooping ass after the pain passes. She-Hulk wacked Hercules, and he was down for the count. Even if he's feral, a chi enhanced punch to the juevos will have him face down, ass up.
uummm......i like juevos rancheros.. unless you count a win as a few seconds of incapacitation, i dont see that effecting creed as much as you think he has had his juevos blown off with a shot gun and he was still hunting down the guy in the next two panels. creed stated all that did was slow him down.