Anthony Joshua's Battle of Britain showdown with Tyson Fury is expected to be confirmed this week, according to Eddie Hearn.
July 24 and August 7 are the two dates tipped for the fight with the fight close to being 'completely finalised' after some frustrating months for fans.
Promoter Bob Arum had revealed the fight was 'dead in the water' after questioning Hearn's site fee deal of $150million.
Frank Warren, co-promoter of Fury - backed up Arum by revealing they were yet to receive the finer details.
However, an optimistic Hearn spoke over the weekend about determining the first undisputed champion since Lennox Lewis and believes it will be confirmed soon.
"This fight is on, this fight is happening. I believe you'll get an announcement next week."
It comes following a war-of-words with Arum, who claimed Fury could be in line to face Deontay Wilder in a trilogy bout.
"Maybe we'll breathe some life into Wilder, and Fury will fight Wilder and Joshua will fight (WBO mandatory challenger Oleksandr) Usyk," said Arum to BoxingScene.com.
"Eddie Hearn is busy trying to sell the London Bridge," Arum continued.
"Let me tell you - last time I talked to Eddie was early last week and he said he was going to have a signed agreement from the Saudis in 24 hours.
"Well, he's a little late. Wouldn't you be pessimistic if you haven't heard from him or anybody for a week?
"We're the promoter with Frank [Warren] of Fury and we haven't heard from Eddie in a week."
Hearn, who promotes Joshua under the Matchroom banner, asked Arum to 'keep the faith' ahead of the proposed blockbuster.
"Bob's ego is out of control. That sort of generation it's all about control and power for them," Hearn told BBC Sport.
"Let's all do our job. I am not looking to upset Arum, I'm just saying 'you will get the latest version of long-form and we will get it done'.
"What is Fury going to do? Fight Deontay Wilder for a fifth of the money?
"The back and forth, I suppose it just comes with the territory of the mega fight.
"To anyone listening, I really apologise for the backwards and forwards as you're probably getting bored of it.
"Try and keep the faith and Bob, try to keep the faith."