Photos: Guillermo Rigondeaux Massive Workout Gallery

New York,NY  --- "MEDIA CRUSH" ---  Undefeated WBA World Super Bantamweight champion Guillermo Rigondeaux hits the heavy bag during a jam-packed media day in New York City Tuesday for his upcoming world championship battle against 2012 Fighter of the Year and WBO World Jr. Featherweight champion Nonito "Filipino Flash" Donaire ,  Saturday, April 13 at the historic Radio City Music Hall in New York City and televised live on HBO World Championship Boxing®.  Promoted by Top Rank, in association with Caribe Promotions, Tecate and Madison Square Garden, tickets priced at $300, $150, $75 and $35, are available for purchase at the Radio City Music Hall Box Office, Madison Square Garden Box Office, Ticketmaster charge by phone (866-858-0008) and online at www.ticketmaster.com ,  www.radiocity.com and www.thegarden.com .     --- Photos by Damien Acevedo/BoxingScene.com.