Vitor Belfort says he's about to be $30 MILLION richer ... that is, if Jake Paul has the guts to step in the boxing ring, telling TMZ Sports The Problem Child's a coward if he doesn't accept the fight.
"I'd like to teach that boy a lesson. Your parents give you behaviors and all that, so he's gonna meet his big daddy," 44-year-old Belfort says.
"And, if he likes money, we got big money. There's no excuse to run away from this fight. So, he has to take it, and if you don't take it, he's gonna show he's a coward and he's looking for easy fights.