While Manny Pacquiao is typically reserved and rarely speaks badly about his opponents, Freddie Roach, the seven-time trainer of the year and a Hall of Famer, isn't the type to hold his tongue.
So when Roach heard that Mayweather was about 2½ hours late for his media workout on Tuesday, he went off.
"Mayweather is a different 'A side' now, and you can guess what the 'A' stands for," said Roach, who presided over Pacquiao's media day at his Wild Card Boxing Club in Hollywood, California, on Wednesday. "He was late for his media workout, leaving major media outlets scheduled to go live with dead air. How selfish is that? It doesn't take a lot to figure out why everyone is rooting for Manny.
"Just look at which fighter has the most endorsements going into this fight and why. When Manny beats Mayweather, it won't only be about unifying the welterweight titles, it will also be a public service to boxing."
Mayweather (47-0, 26 KOs) and Pacquiao (57-5-2, 38 KOs) meet in their long-awaited pay-per-view showdown on May 2 at the MGM Grand in Las Vegas, a fight more than five years in the making.
"I am so glad that Mayweather is big on Shots [a social network Mayweather uses], because he is going to be taking a lot of them from Manny on May 2," Roach said. "That is why he has been avoiding Manny for so long. He didn't want this fight. He can pretend it was a strategy to build up the fight's value but that's not true. For once Mayweather wasn't able to handpick his opponent. He was forced to take this fight -- by Manny, the media and the fans.
"His excuses for not making the fight haven't held water for years and Manny finally exposed him. Mayweather ran out of road. Mayweather may have been the 'A side' during the negotiations, but once he signed the contract, he became the 'B side' just like he did when he fought Oscar De La Hoya, Ricky Hatton, Miguel Cotto and Canelo Alvarez. That is why he prolonged announcing the fight for as long as he did. He wanted all the attention."
Roach also taunted Mayweather about his march toward 49-0, which if he gets there would tie the hallowed mark that legendary heavyweight champion Rocky Marciano retired with, although several boxers have had longer winning streaks.
"Mayweather may be two victories shy of tying Rocky Marciano's record, but I can assure you Mayweather's party will end on May 2 and Marciano's record will remain just that -- the record," Roach said. "And Mayweather will forever be known as Mr. 47 and 1."