Floyd Mayweather Jr. vs. Manny Pacquiao round por round|EN FOTOS
Floyd Mayweather Jr. retained his welterweight title by defeating Manny Pacquiao by unanimous decision.
(Al Bello / Getty Images)Floyd Mayweather Jr. and Manny Pacquiao trade blows during their welterweight title fight on May 2, 2015.
(John Locher / Associated Press)Manny Pacquiao in his corner.
(John Locher / Associated Press)Leo Santa Cruz celebrates his majority decision over Jose Cayetano in a featherweight bout Saturday at MGM Grand Garden Arena.
(Al Bello / Getty Images)Leo Santa Cruz, right, throws a right at Jose Cayetano during their featherweight bout Saturday in Las Vegas.
(Harry How / Getty Images)Leo Santa Cruz, right, defeated Jose Cayetano by unanimous decision in a 10-round featherweight fight in Las Vegas in May.
(Al Bello / Getty Images)Leo Santa Cruz, right, throws a right at Jose Cayetano during their featherweight bout Saturday in Las Vegas.
(Al Bello / Getty Images)Leo Santa Cruz, left, punches Jose Cayetano during their featherweight fight at MGM Grand in Las Vegas on May 2, 2015.
(Eric Jamison / Associated Press)Leo Santa Cruz, right, punches Jose Cayetano during their featherweight fight at MGM Grand in Las Vegas on May 2, 2015.
(Eric Jamison / Associated Press)Jose Cayetano, right, of Mexico, lands a right to the body of Leo Santa Cruz during their featherweight fight at MGM Grand in Las Vegas on May 2, 2015.
(Isaac Brekken / Associated Press)Leo Santa Cruz, right, trades blows with Jose Cayetano during their featherweight bout at MGM Grand in Las Vegas on May 2, 2015.
(John Locher / Associated Press)New England Patriots quarterback
Ring girls practice their routine before the first fight of the Mayweather-Pacquiao card on Saturday at the MGM Grand Garden Arena.
(Kevin Baxter / Los Angeles Times)Boxing fans pose for a photo in front of a Mayweather-Pacquiao poster on Saturday in the lobby of the MGM Grand.
(Kevin Baxter / Los Angeles Times)Brad Solomon celebrates after beating Adrian R. Granado in a super-middleweight fight, which was the first on the Mayweather-Pacquiao undercard Saturday at the MGM Grand Garden Arena in Las Vegas.
(Robert Gauthier / Los Angeles Times)Vasyl Lomachenko lands a right to the face of Gamalier Rodriguez during their featherweight title fight on Saturday night at the MGM Grand Garden Arena.
(John Locher / Associated Press)Vasyl Lomachenko tries to slip a punch by Gamalier Rodriguez during their featherweight title fight in Las Vegas.
(John Locher / Associated Press)Gamalier Rodriguez gets a standing eight count from referee Robert Byrd after being knocked down by Vasyl Lomachenko during their featherweight title fight Saturday.
(John Locher / Associated Press)