Ellerbe: Canelo has a lot of weaknesses; Roger & Floyd Sr. are aware of them

By Dan Ambrose: Leonard Ellerbe, the CEO of Mayweather Promotions, says he's seen a lot of WBA/WBC junior middleweight champion Saul "Canelo" Alvarez, and noticed a lot of different areas that will be exploited by unbeaten Floyd Mayweather Jr. (44-0, 26 KO's) on September 14th in their fight at the MGM Grand in Las Vegas,