27/08/2017 6:08 PM AEST | Updated 27/08/2017 10:10 PM AEST

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.” 

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.

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.