In a revealing interview with Playboy Magazine, the world's best pound-for-pound boxer, Manny Pacquiao, explains how he prepares for a big match. According to the Philippine icon, the key is not getting intimate with his wife for three weeks prior to an important fight, because he believes that would lessen his strength and power. 

Pacquiao and his trainer have discussed the issue with doctors and have concluded that sex lowers one's testosterone. It is a theory also followed by soccer teams during the World Cup. 

In addition, Manny told the magazine that some boxers abstain for 7 to 10 days before a fight, but not three weeks, as Pacquiao claims he does. 

No wonder Floyd Mayweather Jr. has been avoiding him.