VILLALBA, PUERTO RICO  – Undefeated, WBO Minimumweight World Champion Oscar “El Pupilo” Collazo (9-0, 7 KOs) of Villaba, Puerto Rico hosted a media workout ahead of his championship clash on Friday, June 7. Collazo will face Managua, Nicaragua’s Gerardo Zapata (14-1-1) in a special 12-round fight that will be a part of the Boxing Hall of Fame Induction Weekend.