Despite the generous hype, and the fact that Mayweather will move up to 154 lbs to fight Cotto, the billing has a whiff of a stand-in, owing to the fact that a primary reason it's happening is because once more Mayweather could not come to terms with his most alluring rival, Manny Pacquiao.

WSJ: Jason Gay: Plenty of Pomp, Not as Much Circumstance