There's Nothing Magical About Manny Pacquiao's Improvement

During the lead up to Manny Pacquiao’s brilliant dismantling of Joshua Clottey, he’d received more than his share of criticism from people hinting that his blitz through the weight classes on his way to the WBO welterweight title had been assisted by various forms of chemical help. I think that the reason for Pacquiao’s being able to retain and even augment his effectiveness is far less mysterious, although much more rare, than his detractors might realize. Manny Pacquiao is on…