In a highly anticipated match-up, the two best 135-pound boxers in the world will square off when two-time World Boxing Council (WBC) Lightweight Champion Jose Luis Castillo takes on World Boxing Organization (WBO) Champion Diego “Chico’’ Corrales in a world title unification bout Saturday, May 7, 2005, on SHOWTIME at 9 p.m. ET/PT (delayed on the West Coast). [details (http://www.boxingscene.com/?m=show&id=1057)]