A man who got punched in the head for a living says he believes the Earth is flat and NASA is faking images of the Earth from space.

Ex-super-middleweight champion boxer Carl Froch, who was punched on a regular professional basis between 2002 and 2014, said in an interview that he believes NASA and Elon Musk are hiding the truth from the rest of us humans for reasons he failed to elaborate on.

"The Earth is flat, 100 percent. There's no proof of the curvature and this fake space agency NASA use CGI images and everyone is different," the 42-year-old told the Daily Star. "I'm looking at them thinking: 'Hang on a minute, they're like cartoons.'"

The boxer-turned-commentator seems to suggest that the only proof he will accept is flying to space himself and having a look back at our round planet from above.

"When someone like Richard Branson goes up there and starts doing chartered flights and you can look back on Earth and see the Earth's curvature, I'll believe the earth is a globe."

He's not the only British sports star of recent years to have doubts about whether the Earth is round, despite there being many ways for you to prove to yourself that it is in fact round. Former England cricketer Freddie Flintoff said that he was coming around to the idea the Earth was flat and had questions such as: "If you’re in a helicopter and you hover why does the Earth not come to you if it’s round?"

"When the helicopter starts out, it's sitting on the ground and the ground (being part of the Earth) is rotating at one revolution per day, as we know," Kelly Chipps, a postdoctoral fellow in the department of physics at the Colorado School of Mines explained at the time, in case you were wondering.

"Since the helicopter is also sitting on the ground, it's also inside this moving reference frame, and has the momentum that goes with it so the helicopter is also moving at one revolution per day. In fact, so is the air!" she added.

"Now, when the helicopter takes off, it flies straight up to some height above the Earth's surface. But though the helicopter has exerted a force (through the use of its rotors) to lift it straight up, it hasn't exerted a force in the horizontal direction to counter the motion (momentum) it already had that one revolution per minute! So though the helicopter is no longer touching the ground, unless the pilot purposely exerts a force against the helicopter's initial momentum, the helicopter will continue to move at one revolution per day, and thus remain above the same spot on the Earth's surface from where it took off."

If you'd like a quick visual explainer, check out these people trampolining on a moving truck.