Brian Stann is a great MMA fighter, but he's also a class act that White kids can look up to. After knocking out his opponent, Sakara, he ended the fight himself. By UFC rules, he could have continued to inflict damage on Sakara until the referee ended the fight.
Contrast Stann's sportsmanship with the over the top, showy, and often downright degenerate shows that the average black sports star puts on after a touchdown or a dunk. Which type of behavior do we want our White sons, brothers, and nephews emulating?