Fans in disbelief after new footage shows just how brutal Oleksandr Usyk knockout was

An alternate angle of Oleksandr Usyk's ruthless knockout of Daniel Dubois is going viral after the Ukrainian regained his undisputed heavyweight crown in style.

It was an evening to remember for the undefeated Usyk, who delivered another boxing masterclass at Wembley as he floored former IBF champion Dubois in the fifth round of an entertaining contest.

The 38-year-old, a former cruiserweight undisputed champion and 2012 Olympics gold medalist, made a flying start to the bout (like he said he would), landing that trademark jab on numerous occasions in the opening rounds.

To his credit, Dubois stood strong after some hefty flows but the WBO, WBA and WBC champion eventually cemented his place in the history books, flooring the Brit twice in the fifth round to extend his perfect record to 24-0.

As you can see from the slow-motion footage below, Usyk first sent Dubois to the canvas with a right to the head before flattening him with a solid left hook.

Here's how fans on social media reacted to the footage.

One said: "Virtuoso. Oleksandr Usyk doing his finest work in KO'ing Daniel Dubois in Round 5. It’s even more beautiful slowed down. He’s in the GOAT convo whether you like it or not."

A second commented: "The slow-mo video of Usyk knocking out Dubois is insane," and a third wrote: "That was sensational from Usyk."

A fourth said: "Oleksandr Usyk’s slow-mo knockout of Daniel Dubois is absolutely vicious. That timing, that precision… cold-blooded. Usyk really reminded everyone why he’s one of the best in the game."

A fifth added: "Slowed the finish right down, frame by frame. It's crazy how much power Usyk can get. His left foot is clearly off the floor when he lands. Greatness."

Speaking in his post-fight interview, Usyk revealed the four fighters on his hit list.

"Thirty-eight is a young guy, 38 is only the start," he told DAZN. "Maybe Tyson Fury. Maybe Derek Chisora, maybe Anthony Joshua, maybe Joseph Parker, I don't know."

Usyk now boasts wins over Joshua, Fury, Tony Bellew and Derek Chisora alongside Dubois, who was praised by the Ukrainian after Saturday's contest.

"I'm sorry [Dubois], it's sport. My people wanted this win," he said. "Nothing is next. It's enough. Next, I want to rest. My family, my wife, my children, I want to rest now. Two or three months, I want to just rest."

Dubois added: "I have to commend him on the performance, I gave everything I had. Take no credit away from that man, I'll be back. I was just fighting, trying to pick up round by round. It is what it is."

In his in-ring interview, promotor Frank Warren hinted at who could be in line for a shot at the undisputed title.

"Usyk is a modern day legend," said Warren. "In any generation he would be a great fighter. No complaints, the better man won on the night. It's Joe Parker's time."