A photographic look at Saturday's fight between Canelo Alvarez of Mexico and Floyd Mayweather Jr. of the United States
Floyd Mayweather Jr., right, lands a punch against Carlos Molina in the second round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Canelo Alvarez waves to boxing fans before taking on Floyd Mayweather Jr. during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Canelo Alvarez, right, throws a jab at Floyd Mayweather Jr. in the second round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Floyd Mayweather Jr., left, throws a jab at Canelo Alvarez in the first round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.ERIC JAMISON/The Associated Press
Floyd Mayweather Jr. throws a low jab against Canelo Alvarez in the first round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas. (AP Photo/Eric Jamison)ERIC JAMISON/The Associated Press
Canelo Alvarez throws a jab at Floyd Mayweather Jr. in the third round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRIL/The Associated Press
Floyd Mayweather Jr. (L) of the U.S. fights WBC/WBA 154-pound champion Canelo Alvarez during their title fight at the MGM Grand Garden Arena in Las Vegas, Nevada, September 14, 2013.STEVE MARCUS/Reuters
Floyd Mayweather Jr. lands a punch against Canelo Alvarez in the third round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Canelo Alvarez lands a jab against Floyd Mayweather Jr. in the third round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.ERIC JAMISON/The Associated Press
Floyd Mayweather Jr. lands a punch against Canelo Alvarez in the eighth round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.ERIC JAMISON/The Associated Press
Referee Kenny Bayless, center, separates Floyd Mayweather Jr., left, and Canelo Alvarez at the end of the 11th round during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Floyd Mayweather Jr. celebrates after defeating Canelo Alvarez in a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.ERIC JAMISON/The Associated Press
Floyd Mayweather Jr., left, poses for photos with Justin Bieber after defeating Canelo Alvarez during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Canelo Alvarez reacts after losing to Floyd Mayweather Jr. during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.MARK J. TERRILL/The Associated Press
Floyd Mayweather Jr. holds up his title belts after defeating Canelo Alvarez during a 152-pound title fight, Saturday, Sept. 14, 2013, in Las Vegas.ERIC JAMISON/The Associated Press