By Jhonny Gonzalez
WBO junior middleweight champion Hanna Gabriel (13-01, 9KOs) will defend her crown in a battle of unbeatens on February 28th in San Jose, Costa Rica. Her opponent is Oxandia Castillo (11-0-2, 8KOs). Gabriel has been out of the ring for over a year. She suffered an injury and underwent spinal surgery in March 2012.