No Rematch Clause for Spence vs. Porter?

By: Shane Willoughby
There doesn't appear to be a rematch clause for the winner of Errol Spence vs Shawn Porter. Both fighters have expressed what their plans are after the fight but they haven't mentioned a rematch, which normally is a sign of there being no rematch clause.
It isn't unusual for a fight of this magnitude - to champions unifying the belt to not have a rematch clause. But what it does reveal is both fighters are extremely confident in themselves.
During the prolonged negotiations