In a battle of unbeatens, Timothy Bradley (24-0-1 NC, 11 KOs), of Palm Springs, Calif., will defend his WBO Junior Welterweight title against interim champ Lamont Peterson (27-0, 13 KOs) of Washington, D.C., this Saturday, Dec. 12 live on Showtime at 9 p.m. ET/PT, delayed on the West Coast.