IBF/WBA Featherweight Champion Juan Manuel Marquez vs. WBA No. 5 Featherweight Contender Victor Polo Saturday May 7 2005 at 9 PM ET/PT From Mandalay Bay Resort & Casino Las Vegas Nevada NEW YORK March 22 /PRNewswire/ 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 Castil…