this is a good explanation (as far as his case goes). if it was well before the arm wrestling match, it's plausible that it was "being contemplated" as a charity wrestling match (that then became a non-charity arm wrestling match). Pro wrestlers do act silly when hyping up those matches of theirs. I used to watch WWF back in the 80s as a kid.
Well, they didn't get that murderous back then or swear, but I don't know what it turned to after I grew up and stopped watching.
It doesn't explain him mentioning his brothers (though he could be inventing some "insult" his opponent threw at his family as part of the fight hype). He seems to suggest the video was made after the jailhouse beating, but he doesn't say exactly when, does he?