Expanding from discussion here:
As I mentioned, one thing that gets me about MMA is the way fighters sometimes gst smoked by comparatively primitive blitzing a la Mike Swick. It's not common at all for boxers to get taken by this sort of thing. But JohnnyS rightly responded that boxers don't have to worry about eating a knee, elbow, or takedowns from the clinch.
Still, it seems strange that a boxer practically never gets taken by this kind of blitzing, while a guy Swick can use it to ride several fights in a row. So I'd like to talk about how boxers and MMAers respond to blitzing and why exactly there are different outcomes.