LOS ANGELES - Chris Arreola (35-3, 30 KO's), of Riverside, Calif. and Seth Mitchell (26-1-1, 19 KO's), of Brandywine, Md., got into a heated verbal exchange during Wednesday's final press conference for their 12-round heavyweight showdown for the WBC Silver Championship this Saturday, Sept. 7, on SHOWTIME BOXING: Special Edition live on SHOWTIME® immediately following ALL ACCESS: Mayweather vs. Canelo Episode 3 Premiere, which begins at 10 p.m. ET/PT (delayed on the West Coast). Photos by Gene Blevins/Hoganphotos

In the 10-round co-feature from Fantasy Springs Resort Casino in Indio, Calif., former two-division world champion Rafael Marquez (41-8, 37 KO's), of Mexico City, will take on Efrain Esquivias (16-2-1, 9 KO's), of Gardena, Calif., in a featherweight bout.

Tickets for an event originally scheduled for Sept. 6 are priced at $105, $75, $55, $45 and $35 and are available at the Fantasy Springs Box Office, by calling (800) 827-2946 or online at . All tickets bought for Sept. 6 will be honored on Sept. 7. Doors open at 4 p.m. PT and the first live fights start at 4:05 p.m.