I'm currently about one-third of the way on my drive from Vancouver to Las Vegas for the WSOP (no, I'm not writing this while driving). I'm travelling solo, so I'm listening to a lot of podcasts on the way. One gem I managed to come across was a long appearance by UFC middleweight contender Chael Sonnen on the Joe Rogan podcast. (For those who are familiar with Sonnen's pro-wrestling-type persona, he is not "in character" for the interview.)
The whole thing is pretty good, but I wanted to draw attention to one part in particular which begins at 1:18:42 where Sonnen talks a lot about the mental aspect of fighting. There's a lot of discussion about how fighters mentally break, the psychological hurdles Sonnen had to clear to get out of a slump in which he was basically just choking repeatedly (literally and figuratively). The two of them also talk a bit more specifically about fighting and what it's like to win or lose a big fight. It's a great listen for any sports fan.
Here is the link. The podcast is quite long and most of it is quite good, but the 20 minutes or so beginning at 1:18:42 is excellent.