Mike Tyson might be the baddest man on the planet, but he's no match for Jake Paul ... so says KSI, who claims the boxing legend is gonna get his ass knocked out on Friday.
The YouTuber-turned-boxer shared his thoughts on the upcoming bout one day before the massive event at AT&T Stadium ... and he said point blank -- Mike's age (58) is going to play a major factor in the result.
"Jake Paul will knock out Mike Tyson," KSI said on X.