from an interview on nbc's ufc page.
"Q: While you were in the triangle, did you tap due to the choke or to the elbow strikes?
A: I tapped because of the choke. I was good for a long time, but then I started to go out. With the strikes, I was on my way out and he hit me with strikes so I might have moved my body positioning a little because of them. But I tapped because of the choke. I was going to sleep. I'm not beat up at all."
Very interesting.
The rest of the interview is good too. He talks about why he couldn't make weight.
http://www.nbcsports.com/ufc/1010414/detail.html