Veteran trainer Virgil Hunter, best known as the coach for recently retired Andre Ward, believes Floyd Mayweather Jr. rightfully deserves his "50" for beating UFC superstar Conor McGregor.

Last month, Mayweather came back to the ring after two years of retirement and fought McGregor at the T-Mobile Arena in Las Vegas. It was McGregor's first professional boxing match. Mayweather, 40 years old, started slow but eventually broke down and stopped McGregor in the tenth round.

The victory helped Mayweather walk away from the sport with a perfect 50-0 with 26 knockouts. The last win helped Mayweather surpass the undefeated 49-0 record of heavyweight legend Rocky Marciano.

But there are critics and historians who feel Mayweather's fight with McGregor should not count as an official boxing win - because McGregor was grossly overmatched and making his professional debut.

Hunter disagrees and points out that Marciano's record also has some overmatched victories if you review it from top to bottom.

“If he broke the record, he broke the record. Why should there be an asterisk behind it?," Hunter told Fighthype.com

“It’s easy to say he’s [Conor] not a boxer, but you can’t say that now. He was an amateur boxer before he did MMA. It’s obvious that he can box. You can’t say it’s someone coming in off the street just learning how to box.”

“If you’re going to be fair and look at his fifty, then you should be fair and look at the beginning of Rocky’s 49. Compare it to who he fought. Now, there were levels to it, but at the same time, can you say any of Rocky’s early opponents had any more credentials than Conor McGregor? If you ask people right now to name five fighters that Rocky fought, they couldn’t get past Joe Louis or Ezzard Charles or Jersey Joe [Walcott]. When he was 35-0 he fought three guys with losing records in a row.”