The fighters competing on Saturday's Premier Boxing Champions on FOX and FOX Deportes exchanged words and went face-to-face at the official weigh-in before their respective showdowns this Saturday night at Microsoft Theater at L.A. Live. (photos by Sean Ham).

>>>>CLICK HERE FOR THE LIVE SCORECARD<<<<

WBA Featherweight World Champion Leo Santa Cruz will defend his title against Mexico's Rafael Rivera in the main event of the show. Coverage begins at 8 p.m. ET/5 p.m. PT and will feature an exciting clash between contenders Omar Figueroa and John Molina Jr., plus unbeaten prospects Sebastian Fundora and Donnie Marshall going toe-to-toe.

Tickets for the show, which is promoted by TGB Promotions and Ringstar Sports, are on sale now, and can be purchased at AXS.com.

The event also featured an appearance by former world champion and Southern California fan-favorite Fernando Vargas.