Kell Brook says Amir Khan is behind him in the queue to fight Floyd Mayweather as the war of words between the pair continued.
Khan once again dismissed a potential fight with Brook, saying there are bigger fights ahead for him.
And a showdown with pound for pound king Mayweather remains at the top of his agenda.
But Sheffield’s IBF welterweight champion Brook says Khan should get behind him in the queue.
“If anyone should get the Floyd Mayweather fight it should be me,” Brook said.
“I’m the other world champion at welterweight.
“There is no chance of Khan getting that fight. He’s done nothing to make it happen.
“Every time he’s stepped up he’s got stopped.”
Khan has resolutely refused to entertain any prospect of facing Brook, who successfully defended his IBF title at the weekend with an easy win over Frankie Gavin.
Brook’s camp have accused Khan of running scared of a potential stadium-filling showdown and the Sheffield fighter accused Khan of being ‘full of rubbish.’
Khan said he had not watched footage of Brook and refused to rise to his rival’s taunts, other than dismissing any chance of the fight being made in the short-term future at least.
“I have no interest in fighting Kell Brook at the moment because there are so many other, bigger fights out there for me,” said Khan.
“Brook has done nothing to justify a fight with me and he is just in it for the payday. He brings absolutely nothing to the table and it is not a fight I am looking at.”
Khan is convinced he could be less than two weeks away from landing his long-awaited super-fight with pound-for-pound king Floyd Mayweather.
Khan says there has been “movement” in negotiations since his routine win over Chris Algieri in New York on Friday night, and the fight could take place in the United States in September.
Khan told Press Association Sport: “I don’t think I have ever been closer to getting the fight with Floyd Mayweather than I am at this moment.
“The indications are that I have strengthened my case with my win over Algieri and I believe there is every chance the fight could be confirmed within the next two weeks.”
Khan’s long pursuit of Mayweather has led to long spells of inactivity in his career but insists at the age of 28 he cannot afford to wait around if he once more proves to be frustrated.
“The welterweight division is one of the hottest in world boxing at the moment and there are any number of other possibilities, including Miguel Cotto and Keith Thurman,” said Khan.
“I have waited too long and, while I believe it is finally going to happen, I am still determined to pursue other big fights in the United States once I have had some time off with my family.”