WHERE ARE THEY NOW? All the fighters Floyd Mayweather beat to reach 49-0

While McGregor certainly represents the most unusual of Mayweather's opponents, the 40-year-old, self-acclaimed "Best Ever" has faced a wide variety of opponents over his 21-year career.

Some of those opponents are still fighting today, some are recently retired, some are legends in boxing, while others have faded out of view. Unfortunately, some of the fighters have since died as well.

We did our best to track down all 47 of Mayweather's past opponents and find out what they're up to today. While some have seemingly fallen off the map, some still hang around the boxing world.

All records and dates come courtesy of BoxRec.

Mayweather's pro debut was against Roberto Apodaca in October 1996. Mayweather won by TKO in Round 2. Apodaca hasn't fought since 1999. He finished his career 1-5.

Mayweather's second professional fight was against Reggie Sanders in November 1996. Mayweather won by unanimous decision in the fourth round. Sanders last fought in 2014 and had a 12-47 record.

His third pro bout was against Jerry Cooper in January 1997. Mayweather won in a two-minute TKO. Cooper last fought in 2005 and owned a 16-16 record.

In February 1997, Mayweather beat Edgar Ayala in a two-round TKO. Ayala last fought in 2010 and owned a 0-4 record.

A little over a month later, Mayweather fought Kino Rodriguez and won via TKO in Round 1. Rodriguez last fought in 1998 and had a 10-14 record.

On April 12, 1997, Mayweather fought Bobby Giepert, knocking him out in one round. The fight against Mayweather was Giepert's last. He retired with a 19-9 record.

In May of '97, Mayweather took on Tony Duran. Mayweather won by TKO in 1 minute, 12 seconds, the fastest fight of his career.

Duran last fought in 2001 and owned a 13-26 record. He died by suicide in 2004 at age 40.

Source: West Word

In June of 1997, Mayweather fought Larry O'Shields. The fight was one of Mayweather's more competitive at the time, going six rounds before he won by unanimous decision. O'Shields' last fight was in 2000. He finished with a 17-12 record.

Mayweather's next fight came in July against Jesus Chavez — a different Jesus Chavez — which he won by TKO in Round 5. Chavez last fought in 2011 and had a 3-22 record.

On September 6, 1997, Mayweather took on Louie Leija. He won by TKO in Round 2.

Leija went 20-15, with his last fight coming in 2010. He now appears to work as a trainer at a boxing gym in San Antonio

Source: Body Shop Gym

Mayweather fought Felipe Garcia in November of '97, knocking him out in the sixth round. Garcia last fought in 2000 and owned a 14-23 record.

His next opponent was Angelo Nunez, who Mayweather defeated by TKO in Round 3.

Nunez last fought in 1997 and owned a 14-12 record. He started Prime Time Boxing in Sacramento with his wife in 1998.

Source: Franchise Times

In January 1998, Mayweather took on Hector Arroyo and won via TKO in the fifth round. Arroyo last fought in 2001 and sported an 18-10 record.

Mayweather fought Sam Girard on February 28, 1998, knocking him out in the second round.

Girard last fought in 1998 and had a 17-7 record. He told Business Insider he is now an auto mechanic.

Miguel Melo fought Mayweather in March of '98, losing in the third round via TKO (though he gets credit for bloodying Mayweather's nose). The Mayweather fight was Melo's last. He had an 8-2 record.

Mayweather took on Gustavo Fabian Cuello next, going 10 rounds for the first time in his career, but winning by unanimous decision. Cuello last fought in 2003 and owned a 23-21 record.

Source: Complex

In June of 1998, Mayweather took on Tony Pep, winning via unanimous decision after 10 rounds.

Pep fought until 2008, boasting a 43-10 record. After retiring, he started a fitness company.

Source: Pep Boxing & Fitness

Mayweather fought Genaro Hernandez four months later. The fight was stopped in the eighth round and Mayweather handed Hernandez only his second career loss.

Hernandez went 38-2 in his career. He died of cancer in 2011 at 45.

On December 12, 1998, Mayweather went two rounds with Angel Manfredy, winning by TKO in the second.

Manfredy went 43-8 in his career, with his last fight coming in 2004. He is now a boxing trainer.

Source: NWI Times

In February of 1999, Mayweather fought Carlos Alberto Ramon Rios, defeating him by unanimous decision after 12 rounds. Rios last fought in 2014 and owned a 53-11 record.

Mayweather then fought Justin Juuko in May of 1999. Mayweather knocked him out in the ninth round.

Juuko went 45-12 with his last fight coming in 2012. He is now a trainer at Freddie Roach's gym, Wild Card.

Four months after knocking out Juuko, Mayweather faced off with Carlos Gerena. Mayweather won when the fight was stopped in the seventh round. Gerena last fought in 2003 and owned a 38-6 record.

In March 2010, Mayweather fought Gregorio Vargas. He won by unanimous decision after 12 rounds. Vargas last fought in 2004 and owned a 45-9 record.

Mayweather faced Emanuel Augustus in October 2000 and won by TKO in the ninth round. Mayweather once referred to him as the toughest fighter he'd faced.

Source: Complex

Augustus last fought in 2011. In 2014, he was reportedly hit by a stray bullet in the head, and has been on the road to recovery since. He is reportedly training once again.

Source: The Advocate

Mayweather then faced Diego Corrales in January of 2001, winning by TKO in the tenth round.

Corrales had 40-5 record. He died in a motorcycle accident in 2007.

On May 26, 2001, Mayweather faced Carlos Hernandez, who he beat in the 12th round via unanimous decision. Hernandez last fought in 2009 and owned a 43-8 record.

Mayweather and Jesus "El Matador" Chavez fought in November 2001. Mayweather won by technical decision in the ninth round.

Chavez last fought in 2010 and had a 44-8 record. He is now a trainer at Maple Ave Boxing and Fitness in Dallas, Texas.

Source: Maple Ave. Boxing and Fitness

Mayweather fought Jose Luis Castillo on 4/20/02, then again in a rematch on 12/7/02, winning both by unanimous decision after 12 rounds. Castillo last fought in 2014 and had a 66-13 record.

Mayweather's next opponent was Victoriano Sosa, who he beat by unanimous decision after 12 rounds. Sosa went 42-4 in his career, with his last fight coming in 2005.

In November of 2003, Mayweather fought Phillip N'dou. He won by TKO in Round 7.

N'dou last fought in 2016. According to reports, N'dou was arrested in South Africa in 2016 on charges of attacking an official after he had his boxing license revoked due an injury.

Source: Sowetan Live

Mayweather's only fight in 2004 came against DeMarcus Corley, who he beat via unanimous decision after 12 rounds.

Corley is still fighting today and is 2-1 in 2017.

Source: BoxRec

In January 2005, Mayweather took on Henry Bruseles, beating him by TKO in Round 8. Bruseles fought until 2010 and had a 28-4 record.

Mayweather's second fight in 2005 came against Arturo Gatti, who he beat by decision in the sixth round.

Gatti last fought in 2007. He died in 2009, which police ruled a suicide, though there was reportedly controversy about the ruling.

Source: Grantland

Mayweather fought Sharmba Mitchell in November of 2005. He won by TKO in the sixth round.

Mitchell went 57-6 and last fought in 2006. He now appears to train and sell herbal substances.

Warner Theater Friday night... @ Sharmba Mitchell

Source: Herbalife

In April 2006, Mayweather took on Zab Judah and won by unanimous decision after 12 rounds.

Judah still fights today, with a bout scheduled for October.

On November 4, 2006, Mayweather beat Carlos Baldomir in a unanimous decision.

Baldomir last fought in 2014. According to multiple reports, in 2016, he was arrested on charges of sexual offenses.

Source: Boxing Scene

Next, Mayweather took on Oscar De La Hoya for one of the biggest fights of his career. He won by split decision after 12 rounds.

De Lay Hoya retired in 2008 at 39-6. He remains an active voice in boxing and runs his promotion company Golden Boy.

In December of 2007, Mayweather fought Ricky Hatton, beating him via TKO in the 10th round.

Hatton last fought in 2012, finishing his career with a 45-3 record. He is a promoter and trainer today.

Mayweather took some time off before returning in 2009 to fight Juan Manual Marquez. It was a successful return, as he beat Marquez by UD in 2012.

Marquez retired in 2017 with a 56-7 record.

In May 2010, Mayweather fought Shane Mosley and won by unanimous decision after 12 rounds.

Mosley has a 49-10 record, but has not fought this year while dealing with an injury.

Four months later, Mayweather went toe-to-toe with Victor Ortiz. He won by knockout in Round 4, the most recent KO of his career.

Ortiz still fights today, most recently beating Saul Corral in July.

In May of 2012, Mayweather battled Miguel Cotto and won by unanimous decision after 12 rounds.

Cotto still fights today, with a bout scheduled for August 26, the same day as Mayweather-McGregor.

One year later, Mayweather fought Robert Guerrero and won by unanimous decision.

Guerrero is still fighting today, sporting a 33-6 record.

Mayweather took on Canelo Alvarez on September 14, 2013, beating him in majority decision.

Alvarez is still a prominent boxer today. He's scheduled to fight Gennady Golovkin in September.

Mayweather took on Marco Maidana in May 2014, then in September 2014 in a rematch. He won both fights. The latter was Maidana's last fight, as he retired in 2016.

In 2015, Mayweather gave the fighting world what it had been hoping for — a bout against Manny Pacquiao. Unfortunately, it failed to live up to expectations, as Mayweather won in a convincing unanimous decision.

Pacquiao, a senator in the Philippines, is also still an active fighter.

Mayweather's last opponent was Andre Berto, who he soundly beat in September 2015 to advance to 49-0.

Berto is still active and won his most recent fight over Shawn Porter in April 2017.

Now, check out how Mayweather's next opponent rose to prominence...

How Conor McGregor went from Dublin plumber to the king of combat sports >