He's not mentally ill he is just ****ing greedy and an egomaniac. He's not even deluded, he KNOWS he will lose and won't even try to win he'll just turn up trying not that hard to survive the first round then count the money. If he does get seriously hurt, and that would be a needless tragedy, then he'd only have himself to blame in all honesty.
:rofl Harrison should just try and get some wins why not fight someone like Travis Walker, Kerston Manswell someone smaller than him