Golden Boy Promotions has moved Abner Mares vs Daniel Ponce De Leon to the Mayweather-Guerrero undercard according to a report from boxingscene.com. The fight was originally scheduled to be on April 20th, until Canelo decided he didn't want to fight on May 4th, and Golden Boy moved his bout against Austin Trout to April 20th. Golden Boy is stacking up April and May with tremendous fights and his been playing around with dates and fights trying to make the best cards for the fans. Surely this will draw a smile from the fans. This highly anticipated match will create some fireworks before Mayweather and Guerrero take the stage.