Manny Pacquiao has recently requested his promoter move his scheduled return to the ring from Nov. 10 to a later date of Dec. 1. He has yet to choose an opponent.
There is no opponent left that generates the level of buzz that guarantees over a million pay-per-view sales.
When Mayweather defeated Miguel Cotto this past May 5, he defeated the third highest draw currently active in the boxing community.
Outside of a rematch that would be greeted with disdain, Mayweather's options are slim.
Pacquiao's options are even slimmer as a rematch to avenge the controversial decision loss to Timothy Bradley will not sell well. The initial fight sold less than a million PPVs.
Mayweather and Pacquiao have nearly reached the conclusion of their separate, but individually impressive careers.
And while each is bound for the Hall of Fame, there is one unanswered question left for each fighter.
How does a fight between the two legends look?
At this point, not many fans even care who wins. They just want to see the fight. Both are pass their primes, but each has shown vulnerabilities in past fights that make a future clash still intriguing.
From Mayweather being rocked by Shane Mosley and greatly tested by Cotto to Pacquiao's controversial victory over Juan Manuel Marquez and inability to put away Bradley, neither is invincible.
This fight is the proper conclusion to the epic story that history has written about their lives as fighters. If they leave the sport without fighting each other, their story will be left incomplete.
And if they continue to fight anyone else other than each other, no matter who the opposition, the battle will be deemed insignificant and will only have the ability to damage their legacy.
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