Mayweather says Pacquiao rematch is exhibition, venue still undecided

LAS VEGAS — Turns out the Floyd Mayweather Jr.-Manny Pacquiao fight on Sept. 19 in Las Vegas won’t count after all. And it might not even be at the Sphere, the immersive arena near the Strip that has attracted people from all over the world because of its massive high-resolution video backdrop. READ: Manny Pacquiao,