Khan was given a rough time by Scotland's Limond

Khan, 20, was floored by Scotland's Willie Limond on Saturday on his way to claiming his first major title.

Thaxton said: "He's said a lot about me in the press, disrespected me, so now it's time for him to step up the plate.

"There have always been question marks about his ability to take a punch, now I'm convinced that he's got no chin."

Olympic silver medallist Khan captured the Commonwealth belt when Limond failed to emerge for the ninth round at the O2 Arena in London, but only after climbing off the canvas and surviving some torrid moments of his own in the sixth.

He's getting knocked out the first big punch I land, I would get the job done properly Jonathan Thaxton

And Norwich's Thaxton added: "I've got the British title, he's got the Commonwealth title, so let's do things the old-fashioned way and put them both on the line.

"If he says yes, the fight can happen. My promoter Mick Hennessy wants to make the big fights, so we aren't going to let politics get in the way of things.

"I'm not going to hide behind my promoter, we will happily go and box on one of their shows."

Thaxton, 32, made the first defence of his British title with a stoppage of English champion Scott Lawton in March and he is convinced he would have the measure of Khan.

"He was floored heavily by someone I consider a light puncher, someone who gave up his status as mandatory contender to my British title," said Thaxton.

"He's getting knocked out the first big punch I land. I would get the job done properly, I wouldn't let him off the hook. I think he was one punch away from being stopped.

"He's got a bit to prove now and I am giving him the opportunity to fight for the British title against the number one lightweight in Britain.

"He has disrespected a few fighters. He's been talking about being ready for a world title by the time he's 21. I don't believe he's even good enough to win a British title."