by Joel González, notifight.com

Former champion Celestino Caballero has reunited with his trainer Jeff Mayweather, who arrived in Panama and the two of them are working hard in the gym to prepare for the championship clash against WBA "regular" featherweight champion Jonathan Barros, which takes place on June 18 in Argentina. Caballero was training with Mayweather is Las Vegas, but arrived a few days early in Panama. Mayweather joined him this week and he's been training his with slaughter like sessions at the popular gym located at the corner of 12th Street in Santa Ana.