Why, you ask? Money is all about accusing Pacquiao of using performance-enhancing drugs before a fight, and this will just further enhance that accusation. Mayweather has been called a coward and has been accused of being afraid of Pacquiao for quite some time.
For once, people need to realize where Mayweather is coming from. He just wants a fair fight. If Pacquiao wasn't using PEDs, he would agree to take a test right before the fight.
Mayweather put the PED issue into perspective recently in a conversation with Opposing Views,
"When you see an athlete like Michael Jordan in college, you see he's going to be great," Mayweather said. "When you see LeBron James, you say he's going to be great. You see (Muhammad) Ali, you see Sugar Ray Leonard, you see all these fighters, even myself, you say from the beginning, he's going to be great. A guy doesn't (turn) 24 or 25 and just become great"
"I know what happens in this sport. A guy don't all of the sudden get to a certain age and just become good," Mayweather said. "Certain years, where was this guy at? He all of the sudden just pop up, become good and just punching hard out of the blue? C'mon, man. Make this make sense.
Why should be believe that Pacquiao is an innocent boxer that has done nothing wrong. Mayweather isn't exactly perfect by any means in or out of the ring, but he isn't cheating by taking any performance-enhancing drugs.
An early knockout from Pacquiao is only going to fuel those suspicions and Mayweather will once again accuse Pac-Man of cheating.