5. Henry Tillman
Here we find Tyson after his loss to Buster Douglas facing another opponent he'd lost to, albeit in the amateurs. It added something to the flavor of the contest, despite how misleading it was given the difference between professional boxing from the amateurs.
Henry Tillman had kept Tyson away from the 1984 Olympics.
Tyson sought and succeeded at avenging the defeat Tillman had handed him. Tillman looks as if he's perpetually urinating himself from the moment he enters the ring.
As with the previous Tyson knockout shot against Michael (I'm sure you might have mistaken me for) "Jack" Johnson, Tyson finishes off Tillman in the first round with a cartoonishly-absurd overhand right that's swung in the fashion of a hammer at a strong man competition at a county fair where you attempt to ding a bell.
Note Jim Lampley, as Tillman is being counted out, remark dryly, "That'll be enough." Classic.