Canelo will lose media exposure by pulling out of Mayweather's May 4th card

By Dan Ambrose: WBC junior middleweight champion Saul "Canelo" Alvarez (41-0-1, 30 KO's) figured he wasn't going to help Floyd Mayweather Jr. make his May 4th fight card a huge success after Mayweather refused to sign for a September fight with him, so Canelo pulled out of the undercard and will face WBA junior middleweight