When will pacman and mayweather have that boxing matchup?

Whether the fans like it or not, it will never ever happen. Floyd is on the record stating all oncomers must submit to Random style olympic drug testing. Pacquiao refuses and left 40 million dollars on the table and Arum further announced that Pac will never fight in Vegas again after Pac was ordered by the NSAC under the suspect athlete rule to submit to random drug test. Again whether the fans like it or not, it will never happen. The closest thing to a FM Pac fight will be Floyd challenging the first boxer to beat Pac.