Anthony Joshua and Wladimir Klitschko showed great respect for each other and a rematch looks likely
Joshua beat Klitschko by a thrilling 11th-round knockout to end an epic encounter in which both fighters got up off the canvas.
The Ukrainian has a contractual right to a rematch but is currently understood to be considering his options with retirement a possibility for the 41-year-old.
However, Matchroom Boxing chief Hearn believes Klitschko’s camp will be unable to turn down the money on offer for a Joshua v Klitschko II.
“We’re looking at all the potential sites for the rematch,” Hearn told Boxing News.
Anthony Joshua floors Wladimir Klitschko in stunning heavyweight victory Sat, April 29, 2017
Anthony Joshua beat Wladimir Klitschko in a stunning 11th-round stoppage at Wembley Stadium to become unified heavyweight champion
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Anthony Joshua beats Wladimir Klitschko to become unified heavyweight champion
“It’s not really a case of them having to let us know by a certain date.
“For us, it’s happening
“Until [Klitschko] turns round and says ‘no, I’m retiring,’ we’re full steam ahead.
“At the moment all I can tell you is that it’s happening because we haven’t heard otherwise.
Anthony Joshua was more powerful than Wladimir Klitschko in a thrilling fight
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“Bernd [Boente, Klitschko’s manager] has got a meeting with him this week.
“The number of offers we’ve had come in from other sites means the money’s so big, I can’t see him not taking it.
“Even away from the money I think he wants it, I think he looks back and thinks he had Josh in the fifth or sixth.
“A lot of people gave him a lot of props for it, so why not?”
Anthony Joshua wants to defend his IBF, WBA and IBO crowns against Wladimir Klitschko
In order for all three world title belts to be on the line when the pair get together again, the British boxer’s team have had to apply to the IBF for an exemption from the mandatory challenger.
Joshua had been order to fight Hungarian heavyweight Kubrat Pulev, whose only career defeat came in his first world title shot against Klitschko in 2014.
But Hearn believes the boxing body will look kindly on their desire to make the rematch happen.
“I’m confident,” Hearn added.
“We have to fight Pulev, we know we’ve got to fight him. If we don’t fight him next, we’ll fight him afterwards.”
And if Klitschko does want decide to rematch, Joshua appears more than happy to oblige.
"I don’t mind fighting him again, if he wants the rematch,” Joshua said immediately after the first bout.
“Big respect to Wladimir for challenging the young lions of the division.
“It’s up to him, I don’t mind.
“As long as Rob [McCracken, Joshua’s trainer] thinks it’s good I’m good to go.”