PACQUIAO VS. MAYWEATHER JR. Updates: PACQUIAO REFUSES TO COMPLY WITH UNITED STATES ANTI DOPING DRUG TESTING PROCEDURES

Schaefer pointed out, "Todd stated that Pacquiao has trouble with taking blood and doesn't prefer to do it so close to the fight. He, Pacquiao, would only agree to have blood drawn ahead the kick-off press conference and after the fight."

Olympic style drug screening involves random sampling of the athlete's blood and urine prior to and afterwards the fight. The USADA routine includes some blood and urine sampling so that all banned substances, some of which do not come out in urine alone, are tested for thoroughly.

"It is unfortunate to hear this from Manny Pacquiao's representatives, especially since, because by now, both parties had worked out all other issues related to this fight," said Schaefer. "Team Mayweather is certainly surprised that an elite athlete like Manny Pacquiao would decline drug testing procedures which Floyd has already agreed to and have been agreed to by many other top athletes such as Lance Armstrong, and Olympians Michael Phelps, LeBron James and Kobe Bryant."

Mayweather, who was advised of Pacquiao's hesitation shortly after Schaefer received word of the impasse, feels Pacquiao has to explain himself immediately or be confronted with accusations from the media and the public concerning his own status as a clean and drug free athlete.

"I understand Pacquiao not liking having his blood taken, because frankly I don't know anyone who actually does," said Mayweather. "But in a fight of this magnitude, I believe it's our obligation to subject ourselves to sportsmanship at the highest level. I have already agreed to the testing and it is a shame that he is not willing to do the same. It leaves me with great doubt as to the level of fairness I would be facing in the ring that night. I hope that this is either some miscommunication or that Manny will change his mind and step up and allow these tests, which were good enough for all these other great athletes, to be executed by USADA."

Leonard Ellerbe, CEO of Mayweather Promotions said, "We hope that Manny will act the right thing and agree to the examination as it is an egregious act to refuse the testing and hence, deny the millions of fans the right to see this amazing fight. We just want to make sure there is a level playing field in a sport that is a man-to-man contest that relies on strength and ability. I still hope this decision is coming from someone in Pacquiao's camp and not Manny himself as it would be a shame that an athlete of his stature and who represents his whole country would not be able to show the public or his fellow athletes that he agrees to the highest standards in sports competition."