Eddie Hearn, promoter of IBF, WBO, IBO, WBA heavyweight champion Anthony Joshua (21-0, 20 KOs), is believes the handlers behind WBC champion Deontay Wilder (40-0, 39 KOs) are not really looking to make the fight between their boxers.

Recently, Hearn sent Wilder an offer with a guaranteed $12.5 million to make the fight with Joshua.

On Thursday, the Wilder camp responded by sending over an offer of $50 million as a counter - stamping down a whopping guarantee to the British superstar.

While Hearn and Joshua are interested in the offer, they want an actual contract with the terms listed out - and proof that Wilder's offer of $50 million is real.

They believe the offer of $50 million is nothing more than a stunt for publicity.

There was a meeting scheduled for Friday, but Wilder's team canceled after Hearn and Joshua refused to verbally accept the offer of $50 million - which Hearn refuses to do until contract is put together.

"It's all very bizarre. I returned the email of Deontay Wilder and said we are very interested in making this fight, please send us a draft contract. He replied and said 'you have to accept the fight and then we will send you the contract'. I've never known anything so bizarre since I've worked in boxing," Hearn said to Sky Sports.

"I had a meeting with Shelly Finkel scheduled for Thursday, he cancelled that meeting. I requested a meeting for today (Friday) and he emailed me, while also emailing the entire press world, saying 'there is no point in meeting it would be non-productive - we have to accept the deal first.'

"It's always nice to call someone's bluff. What we've done is called their bluff here, and they won't even meet to talk about the deal. We asked for a meeting to try and talk about the offer - they rejected it. We asked for a contract - they rejected it. I don't know what more we can do, we can continue trying."