Eddie Hearn is preparing to push on with finding an alternative opponent for Anthony Joshua if Tyson Fury's team are unable to "get their act together" by the end of the week.

Heavyweight rivals Joshua and Fury had appeared set for a huge showdown in Saudi Arabia on August 14, only for an arbitration ruling involving Deontay Wilder to potentially scupper that plan.

While Joshua holds the IBF, WBA and WBO belts, Fury claimed the WBC title from the previously unbeaten Wilder in their February 2020 rematch following a draw in their initial bout.

On Monday, a judge in the United States ruled that the dethroned champion had the right to face the Briton for a third time before September 15, casting huge doubt over the unification clash scheduled for a month earlier.

With the possibility of Fury no longer being available, Hearn is ready to look elsewhere for his fighter. Oleksandr Usyk – the mandatory challenger for Joshua's WBO strap – is a possibility, though the promoter plans to make sure he has more than one option on the table.

"I've been focused on plan A. The only fight we had in mind was Tyson Fury," Hearn said in an in-depth interview aired on the Matchroom Boxing YouTube channel on Tuesday.

"We hope that fight can still take place on August 14, but the game changed last night. We have to have a plan B in place – and possibly a plan C as well.

"We have a couple of different options. Of course, the one that springs to mind is the WBO mandatory of Oleksandr Usyk. They have been quite patient and, really, we're in a situation now where if team Fury don't get their act together by the end of this week, we will have no option but to look for an alternative fight.

"AJ wants to fight this summer, Oleksandr Usyk is the mandatory and we have two or three other options as well."

Hearn revealed how fellow promoter Bob Arum, who is part of Fury's team, had been "very bullish" over the hearing not being a potential roadblock in the way of the lucrative summer fight with Joshua.

"I think he was in complete and utter shock – and I don't think I've ever really heard him speechless," Hearn said of his conversation with Arum.

"He's been very bullish throughout this whole process that – and I know it's their business and we don't know too much about the contracts or the case – this wouldn't be a problem, this wouldn't stand in the way of an Anthony Joshua-Tyson Fury fight.

"That's quite frustrating. We've been working tirelessly to get this over the line. He was almost shell-shocked, I think. Once he'd calmed down and done what he had to do, I think the move was then to speak to the other side and see if there's a resolution.

"We can't be involved in that, we can't control that process, but as far as I understand it, Tyson Fury wants to fight Anthony Joshua and we had the deal to do so on August 14 in Saudi Arabia. I spoke to our partners in Saudi Arabia and they were not best pleased either.

"I think the conversations are ongoing, but from our point of view we have to get our own side in order and make our plans. Hopefully, they can resolve the issue and we can move forward with the August 14 fight. It's over to them."

Asked if he still remained hopeful over that August bout going ahead, Hearn replied: "I hope it does, because we've grafted away for four or five months to make this happen, and we've got a fantastic deal in place for a legacy fight for a huge amount of money.

"I hope, hope [it goes ahead], but hopeful? I don't know. Everything we were told from the get-go was that this arbitration issue wouldn't be a problem. It obviously is a problem now and we have to think on our feet, act accordingly.

"We still hope that the fight can go ahead, but that's completely out of our hands.

"We know what we want to do: we want to win the undisputed world championship and fight Tyson Fury. But, really, if his hands are tied, we have to look elsewhere."