Frank Warren has given Anthony Joshua two days to accept the offer of a February rematch with Daniel Dubois.
AJ stunned Dubois in his Best of British dust-up at Wembley Stadium in September.
joshua hits the canvas Four Multiple times, Triple D demonstrated his destructive power in front of 96,000 battle fans.
The 27-year-old ultimately won in the fifth round as AJ’s corner failed.
Joshua initially said he would box Dubois again in a 2025 rematch, thereby avoiding any talk of retirement.
The pair were expected to fight again in Saudi Arabia the following February.
But AJ’s promoter Eddie Hearn claimed last month that the change was too soon for his man.
Warren has now challenged Joshua to accept the challenge and fight within the next 48 hours if he wants to win his belt back.
Dubois’ promoter Warren was asked if the fight was “dead in the water”. replied to ifltv: “As long as (AJ) doesn’t get back to us in the next 48 hours, yes.

“If possible I would like to make an announcement tomorrow.
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“But I don’t think we’ll do anything until next week.”
Reports suggest that Joshua is currently battling injuries and would prefer to wait until May to fight again.
Joshua’s promoter Eddie’s father Barry Hearn told mirror: “I think Dubois is dangerous and will be overconfident after his last job.
“I still believe that if AJ boxed differently he would probably beat him in the rematch, but that’s just my opinion.
“More likely, a sensible person doesn’t rush into anything.
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“You take your time. But he is his own man and he will take his own decisions.
“And I think my gut feeling is that the warrior within Anthony Joshua is still burning and he will want to try again.
“My crystal ball seems to be getting clearer again and again. The Daniel Dubois rematch would be a great fight.”
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Last month, IBF President Caryl Peoples confirmed that Dubois “can make alternative defenses against any ranked fighter before April 22, 2025”.
This happened when he was questioned about a possible conflict between Triple D and Fabio Wardley.
