Jake Paul believes his upcoming boxing match against Mike Tyson could be the "biggest fight the world will ever see" ... but Canelo Alvarez sure as hell won't be tuning in -- 'cause the superstar pugilist tells TMZ Sports he has ZERO interest in the event.
There's a bit of history between the Problem Child and the multiple-time champ -- Paul has constantly called out Canelo for a fight ... and while the latter has eased his stance on the internet sensation's presence in the sport, he's made it clear the two won't meet in the ring.