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Mayweather Retires With Perfect 50-0 Record: 'Tonight Was My Last Fight'

After defeating UFC champ Conor McGregor during their much-hyped Saturday night fight in Las Vegas, undefeated boxer Floyd Mayweather Jr. said he was hanging up his gloves — “for sure” this time.

“This was my last fight tonight. For sure. Tonight was my last fight,” Mayweather, 40, said at the conclusion of the unexpectedly competitive bout, according to Rolling Stone. “Tonight I chose the right dance partner to dance with. Conor, you are a hell of a champion.”

Floyd Mayweather Jr. lands a punch against Conor McGregor during their boxing match at the T-Mobile Arena in Las Vegas on Aug. 26, 2017. Referee Robert Byrd stopped the fight in the 10th round. (Photo: USA Today Sports/Reuters)
Floyd Mayweather Jr. lands a punch against Conor McGregor during their boxing match at the T-Mobile Arena in Las Vegas on Aug. 26, 2017. Referee Robert Byrd stopped the fight in the 10th round. (Photo: USA Today Sports/Reuters)

McGregor, who had never fought in a professional boxing match until Saturday, had surprised — and impressed — fans and pundits with his strong showing early on in the fight. The mixed martial arts fighter, however, started to languish as the bout drew on.

Mayweather won by technical knockout in the 10th round. The win means the boxer, who earned at least $100 million from Saturday’s fight, will retire with a 50-0 professional record.

As SB Nation notes, this isn’t the first time Mayweather has retired, having done so twice before — first in 2007 and then in 2015.

Mayweather insists this time’s the real deal, but some fans aren’t quite so convinced.

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Floyd Mayweather Defeats Conor McGregor By Technical Knockout In Tenth Round

The Most Brutal Photos From The Mayweather-McGregor Fight

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LAS VEGAS, NV - AUGUST 26:  Conor McGregor stands in the ring prior to his super welterweight boxing match against Floyd Mayweather Jr. on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: Conor McGregor stands in the ring prior to his super welterweight boxing match against Floyd Mayweather Jr. on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017  Floyd Mayweather Jr.  before the fight REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017 Floyd Mayweather Jr. before the fight REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017  Conor McGregor  before the fight REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017 Conor McGregor before the fight REUTERS/Steve Marcus
LAS VEGAS, NV - AUGUST 26:  Conor McGregor stands in the ring prior to his super welterweight boxing match against Floyd Mayweather Jr. on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: Conor McGregor stands in the ring prior to his super welterweight boxing match against Floyd Mayweather Jr. on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017  Floyd Mayweather Jr. in action with Conor McGregor REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017 Floyd Mayweather Jr. in action with Conor McGregor REUTERS/Steve Marcus
Aug 26, 2017; Las Vegas, NV, USA; Floyd Mayweather Jr. lands a hit against Conor McGregor during the tenth round at T-Mobile Arena. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports
Aug 26, 2017; Las Vegas, NV, USA; Floyd Mayweather Jr. lands a hit against Conor McGregor during the tenth round at T-Mobile Arena. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports
Aug 26, 2017; Las Vegas, NV, USA; Floyd Mayweather Jr. (black trunks) and Conor McGregor (white trunks) box during the 10th round of their boxing match at T-Mobile Arena. Mayweather won via 10th round TKO. Mandatory Credit: Joe Camporeale-USA TODAY Sports
Aug 26, 2017; Las Vegas, NV, USA; Floyd Mayweather Jr. (black trunks) and Conor McGregor (white trunks) box during the 10th round of their boxing match at T-Mobile Arena. Mayweather won via 10th round TKO. Mandatory Credit: Joe Camporeale-USA TODAY Sports
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (R-L) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: (R-L) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26:  (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. sits in his corner in between rounds of his super welterweight boxing match against Conor McGregor on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. sits in his corner in between rounds of his super welterweight boxing match against Conor McGregor on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: (R-L) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. and Conor McGregor tie up during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. and Conor McGregor tie up during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, right, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, right, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
LAS VEGAS, NV - AUGUST 26:  (R-L) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (R-L) Floyd Mayweather Jr. throws a punch at Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, left, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, left, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, left, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Conor McGregor, left, and Floyd Mayweather Jr during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017  Floyd Mayweather Jr. smiles as he sits in his corner in between rounds REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017 Floyd Mayweather Jr. smiles as he sits in his corner in between rounds REUTERS/Steve Marcus
LAS VEGAS, NV - AUGUST 26:  (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26:  (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Conor McGregor throws a punch at Floyd Mayweather Jr. during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Floyd Mayweather Jr, right, and Conor McGregor during their super welterweight boxing match at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
LAS VEGAS, NV - AUGUST 26:  Referee Robert Byrd stops the fight in round 10 with a TKO of Conor McGregor by Floyd Mayweather Jr. in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - AUGUST 26: Referee Robert Byrd stops the fight in round 10 with a TKO of Conor McGregor by Floyd Mayweather Jr. in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
Nevada , United States - 26 August 2017; Referee Robert Byrd separates Floyd Mayweather Jr, right, from Conor McGregor after calling an end to the welterweight boxing match between Floyd Mayweather Jr v Conor McGregor at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Nevada , United States - 26 August 2017; Referee Robert Byrd separates Floyd Mayweather Jr, right, from Conor McGregor after calling an end to the welterweight boxing match between Floyd Mayweather Jr v Conor McGregor at T-Mobile Arena in Las Vegas, USA. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
LAS VEGAS, NV - AUGUST 26:  Floyd Mayweather Jr. celebrates his TKO of Conor McGregor in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - AUGUST 26: Floyd Mayweather Jr. celebrates his TKO of Conor McGregor in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. hugs Floyd Mayweather Sr. after defeating Conor McGregor by TKO in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. hugs Floyd Mayweather Sr. after defeating Conor McGregor by TKO in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Christian Petersen/Getty Images)
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. and  Floyd Mayweather Sr. celebrate after defeating Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. and Floyd Mayweather Sr. celebrate after defeating Conor McGregor during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26:  Referee Robert Byrd raises the hand of Floyd Mayweather Jr. after his TKO of Conor McGregor in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: Referee Robert Byrd raises the hand of Floyd Mayweather Jr. after his TKO of Conor McGregor in their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images )
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017  Floyd Mayweather Jr. hugs Conor McGregor after winning the fight REUTERS/Steve Marcus
Boxing - Floyd Mayweather Jr. vs Conor McGregor - Las Vegas, USA - August 26, 2017 Floyd Mayweather Jr. hugs Conor McGregor after winning the fight REUTERS/Steve Marcus
LAS VEGAS, NV - AUGUST 26:  (L-R) Floyd Mayweather Jr. and  Floyd Mayweather Sr. celebrate after defeating Conor McGregor by TKO in the 10th round during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada.  (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )
LAS VEGAS, NV - AUGUST 26: (L-R) Floyd Mayweather Jr. and Floyd Mayweather Sr. celebrate after defeating Conor McGregor by TKO in the 10th round during their super welterweight boxing match on August 26, 2017 at T-Mobile Arena in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images )

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