The May 4 welterweight title bout with Robert Guerrero brought Mayweather a guaranteed purse of $32 million, with his pay-per-view cut yielding at least another $13 million. Once he gets a similar payday for his Sept. 14 fight, likely against Saul (Canelo) Alvarez, he should hit $90 million in 2013 earnings. From two matches alone Mayweather, 36, stands to make nearly as much as Tigers pitcher Justin Verlander will from his five-year, $140 million extension.
Mark Teixeira, Cal Ripken, Jr. and Randy Johnson made big money in Major League Baseball. Now they discuss the business ventures they've pursued outside of sports.