I hope Mike Tyson knocks out Jake Paul, losing will tarnish his legacy as an all-time great, ex-sparring partner fears

MIKE TYSON must knock out Jake Paul for the sake of his reputation.

That is according to Joe Egan, who sparred the boxing great when they were both teenage amateurs.

Egan spent two years training with Iron Mike before he became the youngest heavyweight champion of all time aged just 20 in 1986.

But the Irishman fears that will be just one of the legendary feats to be tarnished if Tyson is beaten by YouTuber-turned-boxer Paul on Friday.