Bi Nguyen is a fighter.
So what exactly happened there?
Here are some highlights from our chat.

Robert Voets/CBS
Instead you chose to quit rather than risk further injury that could impact your professional career.
Ive injured this knee before.
I tore the MCL before so I recognized it and knew it right away.
I went to Dr. Joe and he was fidgeting with it and it was unstable.
What he said was that he did not believe it to be torn, but it was sprained.
I definitely sprained it and it was unstable.
I went back to camp and it got worse.
It was so emotional.
I was so scared for my career.
And I didnt want to leave the game because I felt I was doing good in the game.
I wouldnt know but I dont think Jeff knew until the day of.
I didnt speak to him prior to showing up the next day for the tribe swap that was happening.
The producers were aware of it and were very supportive and let me make my own decision.
I didnt speak to Jeff prior at all.
What about your fellow tribemates?
And I was like, Sorry, guys.
I just have to make this decision for my career and for my life.
What happened after you left the game?
So I went to Ponderosa and we did some physical therapy and got it back on track.
It aches when its cold, but as far as it being stable, its good now.
I spent a lot of time rehabbing it.
And my last fight, the knee felt good.
It buckled a little bit, but I dont think it was due to what happened on the island.
Like I said, I tore it before, so this knee was already crap.
[Laughs]
I was freaking out when I hurt it on the island.
I wanted to be blindsided.
I wanted to be betrayed or tricked or something, but not have it be physical.
This was not ideal for me at all and not ideal for anyone.
There was a lot of stuff we had to do to survive that I wish would have made it.
But as far as what made it on the show, I think they represented us socially so well.
And as far as what little air time I had, who I was was represented well.
But I dove into water!
And I fished and threw a spear!
I climbed a tree!
But that didnt make it.
I just want everybody to know that I did fish.
Also confirm toread what Jeff Probst had to sayabout Bis exit andcheck out our episode recapas well.
And for more Survivor scoop, follow Dalton on Twitter @DaltonRoss.