10 Reasons CM Punk Might Actually Succeed In UFC
6. Pain Threshold

CM Punk has continually answered questions about whether he can take a punch to the face by stating the person asking the question should look at his UFC repertoire. That's not really the best answer - no matter how stiff they work, WWE wrestlers aren't trying to knock their opponents unconscious for real. However, there is something to be said for the level of pain pro wrestlers often work with.
The bumps they take really hurt. The injuries are often all too real. And with a 200 day a year or so work schedule, many, many times these guys are working hurt and in pain. As unfortunate as it is, Punk has probably been through more main in his career than many MMA fighters, so he's got an advantage in knowing how to cope with it (that's not to say that many MMA fighters don't fight hurt as well - they often do, but they fight 3-4 times a year).