Pacquiao vs. Diaz

June 28, Pacquiao will try to add his fourth world title to a resume that has left him universally rated the best pound-for-pound fighter in the world, now that Floyd Mayweather Jr. has -- at least for the moment -- left the stage. Yet as accomplished as Pacquiao has become, all men have their limits. The question is: Has Pacquiao finally reached his? When Pacquiao slips into the ring to challenge WBC lightweight champion David Diaz, he will be facing a 135-pound opponent who began his career weighing 142 and has worked down from there. In other words, when these two first became professionals there were 36 pounds between them. Watch Pacquiao vs. Diaz in HD free online now on MyWatchSeries with multiple servers and instant playback. Enjoy high-quality streaming of Pacquiao vs. Diaz and share your thoughts in the comments below!