Why hasn't Pacquiao responded to Mayweather?

By Mr. Pennington: Over the past few days Floyd Mayweather Jr. has gone out of his way to publically humiliate Manny Pacquiao sending Christmas cards and posting pictures on twitter. While I found both humorous, this is Mayweather in my eyes attempting to put pressure on Pacquiao's camp to fight. Both fighters need an opponent […]