New York,NY  ---  (L-R)  2012 Fighter of the Year/WBO World Jr. Featherweight champion Nonito "Filipino Flash" Donaire and undefeated WBA World Super Bantamweight champion Guillermo Rigondeaux pose during the final press conference Wednesday in New York City for their upcoming world championship battle ,  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 Chris Farina/Top Rank.