Travis Kelce has astonishingly claimed that 10-15 players in every NFL locker room are flat-earthers - and his brother Jason has backed him up.

On his latest New Heights podcast with comedian Andrew Santino, he was discussing conspiracy theories alongside his brother Jason when Kyrie Irving's flat-earth belief came up.

'Conspiracy theories help bring NFL locker rooms together,' Travis told Santino. 'Have you got any good conspiracy theories?'

'Like Kyrie's flat-earth? What percentage of the NFL believes in flat earth, do you think' Santino replied, prompting Travis - backed by Jason - to make a stunning revelation.

'Kyrie is not the only one that thinks that. He is probably the most well-known. Dude, honestly, there are at least 10 guys, 10-15 guys in every locker room I would imagine. It's crazy'

Travis Kelce claims 10-15 players in every NFL locker room believe that the earth is flat

Jason backed his brother's claim and thinks 15% of teams are made up of flat-earthers 

Jason added: 'It's a lot. You would be shocked. I think if you took a truly anonymous poll, nobody had to disclose their name or anything, you would get over 15% in an NFL locker room.'

Travis joked: 'I'm telling you. Dude, everyone gets hit in the head. It's unbelievable.' 

Jason continued: 'I was telling this to a position coach about the percentage of guys that think that and the coach was like "there is nobody on the team that thinks that".

'And within earshot of this conversation, of the guys said "well how do you know it's not?"'.

Aaron Rodgers, the New York Jets quarterback is perhaps the most famous conspiracy theorist. He is openly anti-vax and footage recently emerged of him suggesting AIDs was a government created disease - but even he has stopped short of saying he think the earth is flat.

Talking about his vaccine stance on 'The Pat McAfee Show' in November 2021, Rodgers said: 'I’m not some sort of anti-vax, flat-earther.

'I believe strongly in bodily autonomy and the ability to make choices for your body, not to have to acquiesce to some sort of woke culture or crazed individuals who say you have to do something.'

Tyler Owens, a prospect who could be picked in the NFL Draft this week, has said he doesn't believe in space and that flat earthers make 'valid points'.

Aaron Rodgers has shared conspiracies before but has denied being a flat-earther 

Patrick Queen, who plays for the Steelers, has openly stated he thinks the earth is flat 

Speaking in February at the NFL Combine, he said: 'I don't believe in space.... like, you know, I'm religious, so I think like we're on our own right now. I don't think there's, like, other planets, and stuff like that.

'I used to believe in the heliocentric thing. Like we used to resolve around the sun and stuff, but then I started seeing flat Earth stuff, and I was like, that's kind of interesting. They started bringing up some valid points.

'I mean, I don't know. It could be real. It could be bull. I don't know.'

Patrick Queen, a linebacker for the Pittsburgh Steelers, is a flat-earther and tweeted last June, when he played for the Baltimore Ravens: 'PSA the earth is flat thank you carry on.'