Have any of you ever fought a friend, teammate or someone you knew?

If so how did you deal with it? I’ve heard interviews of like ufc guys saying they’d fight their teammates for the belt, some have obviously. I’d struggle with this not gonna lie.

I’m not a confrontational or hostile guy 1 bit. I don’t have enemies are necessarily try and hold grudges so I really wouldn’t wanna be put in the situation where I’m offered to fight someone I knew that way.

And I don’t mean someone you know from the scene and you aren’t really friends I mean more so on a personal level