Mayweather apologizes for gay slur and the world yawns.

Several large men milled around the door at 4020 Schiff Drive in an innocuous strip mall in the Chinatown district of this gambling mecca, watching over empty parking spaces in front reserved for the boss’ gleaming white Rolls Royce.

Inside, the sweltering boxing gym was packed shoulder-to-shoulder with boxers, trainers, media, publicists and assorted hangers-on, each of them eager to get a glimpse of the impending show.