"I've just seen how much KSI and Logan Paul made from their fight and I think we could trounce that...," he tells GQ. "Liam wanted to go down to an abandoned railway track or something. I don't want to do that. It's got to be f**king whistles and bells if it happens."
And the former Take That star is convinced he'd be the favourite to win: "(I've been) boxing and sparring, so let's just say I'd be more than happy to get in the ring with him. More than happy. Let's be having you. And obviously I'd win. Not on points, no. He'd go down in the third round I reckon."
"We'd have to get a proper licence as we don't want to be wearing any head protection. Knock out. Third round. Nighty night."