Mayweather vs Guerrero weigh in results, video, start time and LIVE coverage online from Las Vegas

Later on tonight (May 3, 2013) at MGM Grand Garden Arena in Las Vegas, Nevada, boxing superstars Floyd Mayweather Jr. and Robert Guerrero will tip the scales to make tomorrow night's 147-pound bout for the WBC welterweight world championship officially official.

The weigh-ins are slated to begin at 6 p.m. ET. As usual, MMAmania.com will provide complete results with a live stream of the activities below.

In addition to the main event, the card will also feature three other championship bouts: Daniel Ponce de Leon vs. Abner Mares at featherweight, J'Leon Love vs. Gabriel Rosado at middleweight, and Leo Santa Cruz vs. Alexander Munoz at super bantamweight.

Complete Mayweather vs Guerrero weigh-in results:

Main Event:

147 lbs.: Floyd Mayweather (146) vs. Robert Guerrero (147)

Preliminary Card:

126 lbs.: Daniel Ponce de Leon (126) vs. Abner Mares (126)
160 lbs.: J'Leon Love (161.5)* vs. Gabriel Rosado (160)
122 lbs.: Leo Santa Cruz (122) vs. Alexander Munoz (121)
168 lbs.: Badou Jack () vs. Michael Gbenga ()
168 lbs.: Luis Arias () vs. DonYil Livingston ()
168 lbs.: Ronald Gavril () vs. Roberto Yong ()
168 lbs.: Lanell Bellows () vs. Matt Garretson ()

*Love has one hour to make 160-pound limit

Mayweather vs. Guerrero weigh-in video stream:

Remember, too, MMAmania.com will deliver LIVE coverage of Mayweather vs. Guerrero tomorrow night (Sat., May 4, 2013), starting with the Showtime pay-per-view (PPV) broadcast at 10 p.m. ET.

See you then!