By Edward Chaykovsky

WBC/WBA welterweight and junior middleweight champion Floyd Mayweather Jr. (47-0, 26KOs) is not worried about the workrate of WBO champion Manny Pacquiao (57-5-2, 38KOs). The two champions will collide on May 2nd from the MGM Grand in Las Vegas.

Hall of Fame trainer Freddie Roach, who is preparing Pacquiao for the fight at the Wild Card Gym in Hollywood, says his fighter will overwhelm Mayweather with a high volume of punches. Pacquiao has rarely been tired in a fight and throws a lot of punches over a twelve round distance. In his last fight, against Chris Algieri last November, he scored six knockdowns.

Pointing to some of his past opponents like Marcos Maidana, the unbeaten pound-for-pound king is not worried about an opponent coming out and throwing a high arsenal of punches.

"I think my focus is always being in control and dictating the pace," Mayweather said to Mlive.com. "You've got guys who throw a lot of punches -- you know, a majority of the time, I think that everyone game-plans to throw a lot of punches. It hasn't worked so far. But I've faced a lot of great fighters, a lot of guys going down in the Hall of Fame, and guys going down in history as top guys."

Father and trainer Floyd Mayweather Sr. is advising his son to use the uppercut to body. He says Pacquiao's small stature will provide the opportunity for an uppercut - aimed for a the body - to wander upstairs and clip the chin area.

"Being that he's short anyway, it's good for uppercuts, because you might try to hit him in the body and hit him right on the chin," Mayweather Sr. said.