Photos: Floyd Mayweather Jr. through the years

Floyd Mayweather Jr. celebrates his victory over Augustine Sanchez at the U.S. Olympic Box-offs in Augusta, Ga., on April 20, 1996.  (Al Bello / Allsports)

Floyd Mayweather Jr. looks on as he awaits a decision by the judges following a pre-Olympic tune-up bout against Russia’s Viacheslav Smirnov in Miami on June 17, 1996. Mayweather went on to win a bronze medal in the 1996 Atlanta Olympic Games.  (Hans Deryk / Associated Press)

USA’s Floyd Mayweather Jr., right, fight’s Bulgaria’s Serafim Todorov during their 57-kilogram class semifinal at the 1996 Atlanta Olympic Games.  (Rick Bowmer / Associated Press)

Floyd Mayweather Jr. reacts after losing to Bulgaria’s Serafim Todorov in the 57-kilogram semifinals at the 1996 Atlanta Olympic Games.  (Paul Morse / Los Angeles Times)

Floyd Mayweather Jr., right, delivers a punch to the head of Roberto Apodaca during his professional debut at Texas Station in Las Vegas on Oct. 11, 1996. Mayweather won by knockout 37 seconds into the second round.  (Lennox McLendon / Associated Press)

Floyd Mayweather, left, and Carlos Gerena pose during a Sept. 9, 1999 news conference while promoting their WBC super-featherweight championship fight. Mayweather defeated Gerena two days later to improve to 22-0.  (Laura Rauch/ Associated Press)

Floyd Mayweather Jr., left, celebrates with his father, Floyd Mayweather Sr., after defeating Diego Corrales in a WBC super featherweight bout in Las Vegas on Jan. 20, 2001.  (Eric Risberg / Associated Press)

Floyd Mayweather Jr., right, battles Carlos Gerena during their WBC super featherweight title fight in Las Vegas on Sept. 11, 1999. Mayweather retained his title after the referee stopped the fight in the seventh round on the advice of the ringside physician.  (Lori Cain / Associated Press)

Floyd Mayweather Jr. looks on during a WBC super featherweight fight against Justin Juuko at Mandalay Bay Resort in Las Vegas on May 22, 1999. Mayweather defeated Juuko by knockout in the ninth round.  (Jed Jacobsohn / Allsport)

Floyd Mayweather Jr., left, poses for a photo with former USC and NFL running back O.J. Simpson before a boxing match between Evander Holyfield and John Ruiz in Las Vegas on March 3, 2001.  (Laura Rauch / Associated Press)

WBC super flyweight champion Floyd Mayweather Jr. takes part in a Nov. 7, 2001 training session as he prepares for a fight against Jesus Chavez.  (Julie Jacobson / Associated Press)

Floyd Mayweather Jr. throws a left at Jose Luis Castillo during their WBC lightweight bout at Mandalay Bay Resort in Las Vegas on Dec. 7, 2002.  (Laura Rauch / Associated Press)

Floyd Mayweather Jr. poses during a news conference in Los Angeles on Jan. 16, 2001 to promote his WBC super featherweight title fight against Diego Corrales.  (Nick Ut / Associated Press)

Floyd Mayweather Jr., left, throws a left at Jesus Chavez during their super featherweight fight in San Francisco on Nov. 10, 2001.  (Julie Jacobson / Associated Press)

Floyd Mayweather Jr., left, battles Goyo Vargas in a WBC super featherweight title bout at MGM Grand in Las Vegas on March 18, 2000. Mayweather won by unanimous decision to retain his title.  (Lori Cain / Associated Press)

Floyd Mayweather Jr., right, connects to the body of Shane Mosley during a WBA welterweight title bout in May 2010.  (Jae C. Hong / Associated Press)

Floyd Mayweather Jr., right, punches Oscar De La Hoya during their welterweight title fight at MGM Grand in Las Vegas on May 5, 2007.  (Wally Skalij / Los Angeles Times)

WBC super featherweight champion Floyd Mayweather celebrates his win over Diego Corrales at MGM Grand in Las Vegas on Jan. 20, 2001.  (John Gurzinski / Getty Images)

Floyd Mayweather Jr., left, lands a punch to the body of Jose Luis Castillo in the 11th round of their WBC lightweight championship bout in Las Vegas on April 20, 2002. Mayweather won the fight.  (Eric Jamison / Associated Press)

DeMarcus Corley, left, recovers after falling down during the 10th round against Floyd Mayweather Jr. during a super lightweight bout in Atlantic City, N.J., on May 22, 2004. Mayweather won by unanimous decision.  (Brian Branch Price / Associated Press)

Floyd Mayweather Jr. sits on the shoulders of trainer Leonard Ellerbe following his victory over DeMarcus Corley in a WBC super lightweight elimination bout in Atlantic City, N.J., on May 22, 2004.  (Mary Godleski / Associated Press)

Zab Judah, left, and Floyd Mayweather Jr. exchange words as they are restrained by chief inspector Tony Lato, center, during a weigh-in ceremony in Las Vegas on April 7, 2006.  (Jae C. Hong / Associated Press)

Floyd Mayweather Jr. flashes a peace sign during a recess in his 2005 felony battery trial in Las Vegas. Mayweather Jr. was later acquitted on all charges.  (Joe Cavaretta / Associated Press)

Floyd Mayweather Jr. weighs in at Mandalay Bay Resort a day before his Nov. 2006 bout against Carlos Baldomir.  (Laura Rauch / Associated Press)

Oscar De La Hoya, left, and Floyd Mayweather Jr.exchange words during a news conference at MGM Grand in Las Vegas on Feb. 27, 2007.  (John Locher / Associated Press)

Oscar De La Hoya, left, punches Floyd Mayweather Jr. during the eighth round of their welterweight title fight at MGM Grand in Las Vegas on May 5, 2007.  (Wally Skalij / Los Angeles Times)

WBC welterweight champion Floyd Mayweather Jr., left, and Ricky Hatton are restrained after Mayweather pushed Hatton during a news conference at MGM Grand in Las Vegas on Dec. 5, 2007.  (Jae C. Hong / Associated Press)

Floyd Mayweather Jr. is carried to the ring before his WBC welterweight championship bout against Carlos Baldomir at Mandalay Bay Resort in Las Vegas on Nov. 4, 2006. Mayweather won the fight by unanimous decision.

Floyd Mayweather Jr. kisses his sons before his WBC welterweight title fight against Ricky Hatton at MGM Grand in Las Vegas on Dec. 8, 2007.  (Isaac Brekken / Associated Press)

Floyd Mayweather Jr., left, punches Ricky Hatton during their WBC welterweight title fight at MGM Grand in Las Vegas on Dec. 8, 2007. Mayweather won by knockout in the 10th round.  (Jae C. Hong / Associated Press)

Floyd Mayweather Jr., right, works out in a Las Vegas gym as his father, Floyd Mayweather Sr., left, looks on Sept. 2, 2009. Mayweather was training for his Sept. 19 bout against Juan Manuel Marquez.  (Isaac Brekken / Associated Press)

Floyd Mayweather Jr. arrives for a news conference at the MGM Grand in Las Vegas to promote his 2007 WBC welterweight title bout against Oscar De La Hoya.  (Wally Skalij / Los Angeles Times)

Recording artist Justin Bieber, left, holds up a pair of championship belts before Floyd Mayweather Jr.’s fight against Miguel Cotto at the MGM Grand in Las Vegas on May 5, 2012.  (Al Bello / Getty Images)

Floyd Mayweather Jr. celebrates his victory by unanimous decision over Robert Guerrero in a WBC welterweight title fight at MGM Grand in Las Vegas on May 4, 2013.  (Al Bello / Getty Images)

Floyd Mayweather Jr. throws a right to the head of Saul ‘Canelo’ Alvarez during their WBC/WBA title fight at MGM Grand in Las Vegas on Sept. 14, 2013. Mayweather won the bout.  (Al Bello / Getty Images)

Floyd Mayweather Jr. lands a left jab to the face of Robert Guerrero during the fourth round of their WBC welterweight title fight in Las Vegas on May 4, 2013.  (Isaac Brekken / Associated Press)

Floyd Mayweather Jr. speaks with reporters during a news conference on July 14, 2014 to promote his upcoming bout against Marcos Maidana.  (Seth Wenig / Associated Press)

Tennis star Maria Sharapova, left, and Floyd Mayweather Jr. present an award at the 2014 ESPYs at Nokia Theater in L.A.  (Kevin Winter / Getty Images)

Floyd Mayweather Jr., right, delivers a punch to the face of Marcos Maidana during their welterweight title fight at MGM Grand in Las Vegas on May 3, 2014.  (John Gurzinski / AFP/Getty Images)

Floyd Mayweather Jr. and Manny Pacquiao trade blows during their welterweight title fight on May 2, 2015.

Floyd Mayweather Jr. retained his welterweight title by defeating Manny Pacquiao by unanimous decision.