WEIGH-IN RESULTS:Errol Spence Jr. vs. Terence Crawford.

Errol Spence Jr. weighed in at 147 pounds while Terence Crawford tipped the scale at 146.8 pounds for Saturday's undisputed welterweight world championship fight at T-Mobile Arena.

The winner will become the first undisputed welterweight world champion in nearly two decades. Zab Judah scored a ninth-round TKO of Cory Spinks on February 5, 2005, in St. Louis, Missouri, to become the undisputed king at 147-pounds.

Spence enters the ring in possession of the WBC, WBA, and IBF titles, but Crawford has the final piece to the undisputed puzzle -- the WBO strap.

Both fighters will earn $10 million a piece.