"Ortiz vs. Lopez," a 12-round fight for the vacant WBC Silver Welterweight Championship taking place Saturday, June 23, at STAPLES Center in Los Angeles, Calif., is promoted by Golden Boy Promotions in association with Goossen Tutor Promotions and Thompson Boxing Promotions and sponsored by Corona, DeWalt Tools and AT&T. The co-feature will see former Three-Division World Champion Humberto "Zorrita" Sotobattle Argentinean knockout artist Lucas Matthysse in a 12-round fight for the vacant WBC Continental Americas Super Lightweight title which is presented in association with Baja Boxing Promotions and Arano Box Promotions. Opening the SHOWTIME CHAMPIONSHIP BOXING tripleheader at 9 p.m. ET/PT (delayed on the West Coast) will be top rated heavyweight contender Chris Arreola facing an opponent to be announced.