I've been a hardcore MMA fan for over a decade, and I noticed Curtis' stutter a few years ago during one of his post-fight interviews, but this is the first time (that I know of) that he's publicly spoken about it. There's about five or six other UFC fighers that I highly suspect have a stutter as well, but they haven't spoken about it publicly, so I don't want to out them. But it is really impressive to see someone literally engage in a fight with another highly-skilled athlete and then immediately get on a microphone in front of a sold-out stadium. I definitely recommend reading through the r/MMA comments as well. It's really cool to see people being inquisitive and supportive.