"Pac Man" says he has "no problem" with his shoulder and, after a bit of politicking, wants another go at "Money."
There's a comic I read that had an interesting take on the psychology of losing.
We, as fans, idolize the humble fighter, the one who has no excuses for a loss. We respect the competitor who can shoulder his/her defeats and grow from them.
At the same time, the mindset of "I beat him nine times out of 10" or "she just caught me" is necessary. A fighter needs a certain level of machismo, however delusional, to stand up to the monstrous opponents they frequently run into at the world level.