By Ernesto Catellanos, notifight.com

Hall of Fame trainer Ignacio "Nacho" Beristain is hoping the judges in Las Vegas calls things properly on May 2nd, when welterweight champions Floyd Mayweather Jr. and Manny Pacquiao collide in a pay-per-view blockbuster from the MGM Grand in Las Vegas.

Nacho, and his prized pupil Juan Manuel Marquez, have long accused the Vegas judges of robbing them in the first three meetings with Pacquiao. In the fourth meeting in 2012, Marquez took matters into his own hands by knocking Pacquiao out in the sixth round.

"There are suspicions in this fight on whether judges will favor Mayweather because he is American, and the judges will be United States. Besides that, the lead promoter of the contest is the same company owned by Mayweather, and the audience will be American. I hope......this time the judges will score the fight well and do not show favoritism to Mayweather," Nacho said.

"Floyd has great speed, he is very clever. When you face him you have to really keep mentally focused because he attacks when you least expect. I do not see flaws in Mayweather where you can attack him. Manny relies heavily on the straight right, yet he needs to give himself room to connect with that right, as did when Juan Manuel Marquez knocked him out. I think Pacquiao and Mayweather will be a long fight that will go to a decision."