MGM National Harbor, Oxon Hill - Lightweight sensation Devin Haney (22-0, 14 KOs) scored a vicious one-punch knockout of Antonio Moran (24-4, 17 KOs) in the seventh round.

Haney was making his debut as a Matchroom Sport fighter, and his first bout on the DAZN streaming service.

Haney started off in the first with razor sharp punches that were landing flush on a confused Moran, who was was trying to land combinations in the second, but he was hitting a lot of air and getting countered for his trouble.

In the seventh round, Haney landed a huge overhand right while Moran was against the ropes - and Moran went down and out. The referee quickly waved off the fight.

Haney's promoter, Eddie Hearn, was very impressed with the win.

“It was unbelievable. Where I come from in England, if we had a star like this, the country would be going mad. So you guys need to get behind Devin Haney because let me tell you, America has a superstar on their hands. He is 20 years old. He is 22-0. They say he doesn’t carry power but he is taking guys out like that," Hearn said.

"Jose Pedraza struggled against that guy, a champion who went the distance with Lomachenko. That was like watching an artist draw a beautiful picture and then at the end just sign his name off and walk away into the night. This is a beautiful, beautiful start. We are so lucky to have him with Matchroom and DAZN. Devin Haney Promotions is a great team to work with and we are going to enjoy watching him go all the way to the top – winning world titles in different divisions.

"The WBC have ordered him to fight Zaur Abdullaev in a title eliminator to fight the winner of Lomachenko vs. Campbell. Devin wants to fight them all – Teofimo Lopez, another guy called Gervonta Davis, Ryan Garcia. These are the super-fights that Devin Haney will be in over the next few years. If it’s Maryland, if it’s Las Vegas, if it’s the Bay Area. The whole United States needs to get behind this guy. He is a superstar.”