By Alfredo Jaime Gómez, notifight.com

WBO flyweight champion Julio Cesar "Pingo" Miranda (35-5, 28KOs) has begun training for his mandatory defense against Brian Viloria (28-3, 16KOs), which is going to happen on June 4th at the Staples Center in Los Angeles, California, as part of the undercard to the middleweight clash between Julio Cesar Chavez Jr. and WBC champion Sebastian Zbik. Miranda may hold his main training base in Veracruz.