Official: Mayweather-Maidana rematch Sept 13 at MGM Grand

Perhaps the biggest surprise of this announcement is that it came via some smartphone app called Shots. Mayweather must've been paid handsomely to make the announcement with the app (which is now being Googled furiously), proving once again Money Mayweather is the king of brand extension.

No, probably the biggest surprise is that Mayweather Promotions will work with Golden Boy Promotions to stage the show which will take place at the MGM Grand in Las Vegas and be broadcast on Showtime PPV. There was some speculation that the fight may take place in New York at the Barclays Center under the Mayweather Promotions banner, after the company sought a license from the NYSAC.

According to Kevin Iole at Yahoo! Sports, that speculation was just ... speculation. Leonard Ellerbe confirmed to Iole via telephone that Golden Boy would in fact promote the fight.

What's most unclear here is how much buzz the P4P king will be able to drum up for the rematch. The first fight sold fewer than one million PPV buys. The bout, however, was more competitive than many expected, so will that lead to more buys this time? Or is it more of a letdown that Floyd won't take on someone new?