Amir Khan has criticised Kell Brook and his camp for "making the public believe" that he doesn't want an all-British showdown.
Brook expressed a desire to take on Khan shortly after defending his IBF welterweight title against Jo Jo Dan last Saturday.
Khan has revealed that he wants to fight the Sheffield-born boxer within 12 months, but has criticised Brook and promoter Eddie Hearn for their portrayal of the current situation.
On Twitter, Khan wrote: "My team spoke to Eddie two weeks ago and he knew June 13th is a no. And they still called me out #Pathetic. This can be the biggest fight UK has ever seen and you want to do it all in two months?
"Let's say [Brook] beats a Marquez, Maidana, Rios or even stops Alexander next or any other top fighter, our fight will be even bigger. They're doing a very good job making the public believe I don't want the fight, trust me I do!
"Keep building the hype because winner takes all. I'm done, already given my word to a fighter, will be announcing my next fight very soon."
Khan is also hopeful of facing the winner of the highly-anticipated May bout between Floyd Mayweather Jr and Manny Pacquaio.