By Edward Chaykovsky

Hall-of-Fame trainer Freddie Roach is crossing his fingers that whoever gets appointed to referee the May 2nd blockbuster will do the right thing and call the fight down the middle. 

Roach's fighter, WBO welterweight champion Manny Pacquiao, will unify his crown against WBC/WBA champion Floyd Mayweather Jr. The fight will headline a pay-per-view event from the MGM Grand in Las Vegas, which is Mayweather's home venue and hometown.

Roach is not worried about the judges - even though Pacquiao felt he was robbed at the same venue when losing a disputed twelve round decision to Timothy Bradley in 2012.

Some of Pacquiao's camp members are worried about Mayweather being allowed to excessively hold and/or use elbows.

"I know all the referees, I know all the good ones, I know the great ones. I think they all respect me and Manny enough to give us a fair fight," Roach told Dyan Castillejo of ABS-CBN News. "That's all I'm asking for. Whoever refs this fight, all I'm asking is please, give us a fair fight, and let the best man win, and I think they'll do that. The Vegas judges, I think that this is such a big fight that they're gonna call a fair fight. My biggest concern is the referee right now."