Floyd Mayweather Jr. has ruled out fighting England's Amir Khan next, and it's now looking like his Sept. 12 bout will be televised on Showtime pay-per-view, not CBS.
A boxing official involved in negotiations but not authorized to discuss details publicly told The Times on Saturday that it's "90 percent" likely that Mayweather (48-0) will fight on Showtime.
Originally, CBS emerged as a player, with Mayweather interested in exploring whether advertising revenue could support a fight of his magnitude.
In May, Mayweather earned in excess of $220...