There will be knockouts allowed in the upcoming exhibition fight between former five division champion Floyd Mayweather and Youtube superstar Logan Paul.

Mayweather retired from the sport in August of 2017, when he stopped UFC superstar Conor McGregor in the tenth round at the T-Mobile Arena in Las Vegas.

He will face Paul on February 20th, at a venue to be announced.

The Mayweather-Paul pay-per-event is being financially backed by Fanmio - a site that matches fans with their favorite celebrities.

Mayweather, by far, has the edge in experience with his perfect 50-0 pro record.

Paul has a single professional fight under his belt. He lost a close split decision to Youtube rival KSI last year.

But, Paul has a big size advantage with at least a 50-pound edge. He is also six inches taller.

Solomon Engel, Founder and CEO of Fanmio, says Mayweather is taking the fight very seriously.

"I think Floyd is going to have fun with it but he's taking it very seriously. Floyd trains extensively and I don't think he's going to go into this fight and not be prepared. He's very excited for the fight. He sees some big opportunities here, and I don't want to speak for him but I think we all feel this could be a very historical fight and a number of different levels," Engel told The Sun.

According to Engel, unlike the recent exhibition fight between Mike Tyson and Roy Jones, this contest will be a real fight with knockouts being allowed.

The California State Athletic Commission would now allow Tyson and Jones, who are both over the age of 50, to hurt each other or go for knockouts.

Regardless of the rules, Tyson-Jones was a big financial success - with over 1.5 million purchases for their November 28 PPV.

Engel says Mayweather, 43, and Paul, 25, will be allowed to do damage.

"This is a real fight. And whoever wins, wins. Certainly there could be a knockout, yes. I think it will be a very competitive fight. And to be clear, we have Floyd who is the best fighter, and Logan who is a new fighter. But, Logan does have some size difference, he's many inches taller, many pounds heavier and when you look at size and how that could affect the match, there's really no telling what the outcome could be," Engel said.

"I do think that it will be competitive because Floyd has an incredible amount of skill and he's going to bring that to the table and Logan has size. It's like the David vs Goliath story - and we all know the outcome of that. But we don't know what the outcome will be here."