Yorkshireman Brook is frustrated at what he sees as Khan’s reluctance for a showdown between them to take place.
And he vented his feelings during a press conference in Sheffield ahead of a final eliminator for the WBA super-welterweight world title this weekend.
Instead of facing Brook, Khan has now been linked to taking on Terence Crawford – much to Brook’s annoyance.
“I’m doing everything I can for the fans, he has turned his back on them. Everyone knows it’s him that is running off,” Brook said, in comments reported by Sky Sports’ official website.
“Amir Khan is a con man, they should call him Amir ‘con’. This is his last big fight under Matchroom, and I thought it was nailed on.
“He shook my hand and looked me dead in the eye and said we would fight next. What can I do? I’ve bent over backwards.
“I want any elite fighter. I’ve got that buzz again. I want the top guys.
“In training, we are getting all the hard work done and having a good crack in between. Camp could not have gone any better. I’m raring to go.
“I am not interested in what Zerafa’s going to do, I am going to be 100 per cent. No man can deal with me on Saturday night. I’m very explosive and looking to put on a serious performance.”
Zerafa, though, has only lost twice during his professional career, and he is ready to take his opportunity against Brook at the Sheffield Arena.
“Brook has done a lot of great things for the sport,” Zerafa said. “We know it’s a hard task, but we are prepared – this is a world title for me.
“Brook is just a man with two arms, two legs, a head and he bleeds red.
“It’s going to be fireworks. We’ve seen flaws in Kell, and if there are too many holes in a ship, it sinks. No stone has been left unturned.”