Bradley, (24-0-1 NC, 11 KOs), of Palm Springs, Calif., and Peterson (27-0, 13 KOs), of Washington, D.C., participated in a national media conference call to discuss their upcoming world title mega-matchup on Saturday, Dec. 12 live on Showtime at 9 p.m. ET/PT, delayed on the West Coast). In an excellent battle of unbeatens, Bradley will…