After several attempts by both camps as well as a mediation team to finally make the fight happen, no one has been able to talk both sides into agreeing on certain details.
The main disputes that can't seem to be agreed upon are the purse split and drug testing.
Most fans believe that these two superstars deserve close to an equal share of the money. And although Manny Pacquiao has agreed to give Floyd Mayweather the higher percentage, Floyd comes up with new demands.
Is Floyd Mayweather just not willing to fight?
Some presume Floyd is hesitant to face Manny because, stylistically, the match-up favors his Filipino rival.
And looking at Pacquiao vs Mayweather in a head-to-head match-up, there are a few things about Manny Pacquiao's style that make the Floyd Mayweather's camp uncomfortable, I'm sure.
Manny Pacquiao is a fast, hard hitting southpaw who throws punches in bunches.
Pictured: Manny Pacquiao, right, lands a right on the jaw of Miguel Cotto
Courtesy of Chris Furina, Top Rank
PacMan has knocked out guys that Mayweather hasn't been able to stop so Manny is obviously a significant threat. I'm not suggesting that Mayweather cannot win the fight, only that Pacquiao poses a real threat to Mayweather, and certainly one that is greater than Floyd is accustomed to seeing.
When an orthodox fighter faces a southpaw (or left-handed fighter), the righty is already at a slight disadvantage.
Every southpaw has sparred and fought against mainly orthodox fighters ever since they started boxing. However, because southpaws are greatly outnumbered by orthodox fighters, an orthodox fighter gets a chance to spar and fight a southpaw only on occassion. The southpaw is already quite a bit more familiar with his orthodox opponent's stance than the orthodox fighter is with the southpaw's.
Fighting a southpaw usually presents a quandry for many, if not most, orthodox fighters. And in Pacquiao's case, this certainly holds true, especially given his speed, explosiveness and educated feet.
We have seen Mayweather get caught by lesser southpaws, such as Demarcus Corley and Zab Judah, with hard straight punches that hurt him at one point in the fight. He went on to win both of those fights, but Manny Pacquiao presents a different scenario should he catch Floyd Mayweather with a good shot.
Pictured: Floyd Mayweather, right, looks to land against a defending Miguel Cotto
Courtesy of Hogan Photos/Golden Boy Promotions
First of all, Floyd is a defensive shell with his right hand protecting against a left hook, his left hand protecting his body, and his chin tucked behind his left shoulder.
That works well against orthodox fighters but, against a southpaw, it would be more difficult for Floyd to roll with a southpaw's right hook when his opponent's front hand is on the same side as his.
The southpaw will be a little closer to him, so instead of throwing a straight right hand, he will be able to loop the shot over Floyd's shoulder and aim for his temple. In order to defend against Pacquiao's straight left hand, Floyd will have to bend his knees and drop underneath it because the orthodox VS southpaw angle won't allow him to roll effectively.
And Pacquiao doesn't throw just one straight left or one right hook. He unleashes four and five punch combinations, and then steps around to his opponent's back side which allows him to throw combinations from an angle where his opponent doesn't see the shots coming. There will be many more shots coming after the one that will likely catch Floyd should it happen that way.
Perhaps its not Pacquiao's speed, power and footwork that would have Mayweather's camp concerned.... Maybe its those things PLUS his southpaw stance?
Is Floyd Mayweather ducking Manny Pacquiao for this reason?
The southpaw Judah gave Mayweather problems early on.