Kyacey Uscola tells the story on TUF 11: The Aftermath: (video at the 18:30 min mark)
Stephan Bonnar: So Kyacey, after you got off the show you had a pretty interesting fight, and this one was not with humans but rather with a pack of pit bulls. What happened?
Kyacey Uscola: I was walking up to the side of the (TUF) house, along the road, when these dogs sort of ran up on me and cornered me, and um I’m an idiot I didn't run when I should’ve ran, I squared off with them and sliced my hand punching one in the teeth. Got chunks bitten out of my shoulder, hip, hamstring and the uh money one was that they bit through my urethra and uh I had to have a catheter for two weeks...
SB: The tooth actually pierced through your penis?
KU: Yeah, all the way through.
SB: It bit a hole in it?
SB: Holy shit.
SB: At any point did you try choking the dog out? Or did you just throw strikes?
KU: I didn’t want to get on the ground with them, it was all sprawl and brawl man.
SB: So not too different from how you fight then...
KU: Not too much.
KU: The hooks I threw were from the hip, everything was no technique, soccer kicks. (gestures wildly)
SB: That was a month ago, how’s the recovery? Able to train again?
KU: Getting there, somewhat 10 days ago I got into it.
SB: How about you and the wife?
KU: Just easing in to things.
SB: Maybe start with some blumpkins.
HT: ultimatefighter.com, transcribed by gward armbar
The Ultimate Fighter 11 Finale coverage