Top Rank will be streaming the weigh-ins this evening from Las Vegas for the Mandalay Bay portion of tomorrow night's pay-per-view, featuring lightweights Brandon Rios and Richard Abril in the main event of the Vegas show, and co-main event of the pay-per-view broadcast. In the other main event, Juan Manuel Marquez faces Serhiy Fedchenko in Mexico City.

[ Fight Previews For All Four PPV Bouts ]

Bad Left Hook will be here at 6 p.m. EDT for live weigh-in coverage, and the video will be embedded here as soon as it is available, so you won't have to leave the site to watch the fighters hit the scales. Rios and Abril have jawed a lot so far, and it's probably even money that we get some kind of shoving contest or the like.

Also weighing in this evening will be junior welterweights Mike Alvarado and Mauricio Herrera, who meet in a 10-round bout, and lightweights Mercito Gesta and Oscar Cuero, who are also scheduled for 10 rounds tomorrow.