WBC/WBO champion Jose Ramirez and WBA/IBF champion Josh Taylor were all business Friday, when the boxers made weight for Saturday's undisputed junior welterweight world title showdown at The Theater at Virgin Hotels Las Vegas. (photos by Mikey Williams)

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Ramirez (26-0, 17 KOs) and Taylor (17-0, 13 KOs) are fighting, not only to maintain their unbeaten records, but to become the sixth man to attain undisputed status in the four-belt era.

For the second time since the matchup was officially announced nearly three months ago, the two best 140-pound fighters in the world were face to face. A little good-natured trash talk followed. But that's to be expected.

Jose Ramirez 139.6 lbs vs. Josh Taylor 139.6 lbs 

(Undisputed Junior Welterweight World Title — 12 Rounds)

Judges: Tim Cheatham, Dave Moretti and Steve Weisfeld

Referee: Kenny Bayless