I Tivo'd it, and it didn't really look like a bad groin shot. It looked like he got a small nut shot and then in "selling" it, he fell into an upkick. I dunno, I'll have to watch it again, I suppose. And it didn't look like any of his handlers were tending to his balls during his timeout.
And him repeatedly turning away from Hansen's punches mid-punch, to turn them into "punches to the back of the head" was pretty weak as Mezger and Schiavello pointed out.
Penn would annhilate him. (and I'm no Penn fan)