Daniel Dubois will now face Ricardo Snijders in his warm-up bout at BT Sport studios next Satuday, August 29.
The unbeaten 22-year-old heavyweight is on course for an October 24 showdown with Joe Joyce and so must come through this contest.
Daniel Dubois is 14-0 (13 KOs) as a professional
Erik Pfeifer was originally Dubois’ planned opponent but it’s claimed issues with his medicals led to the replacement.
Promoter Frank Warren said: “Of course it’s a disappointment that we have had to make a late change, but the most important thing was getting Daniel a solid test.
“We’ve had Snijders training for weeks getting ready for this fight on the off chance there was an issue, and thank God we did.
“Pfeifer‘s team didn’t submit his MRI on time and given the current circumstances we couldn’t stand for the uncertainty or take the risk that the fight would be pulled at the last minute.
Joyce is now 11-0 (10 KOs)
“Daniel hasn’t boxed since last December, some eight months ago. That’s a long time, especially for Daniel who has always been active.
“Daniel trained at home with his sister and younger brother during lockdown and he has been back in the gym with his trainer Martin Bowers for several weeks.
“Joe got an impressive win last month, so this is Daniel’s chance to show what he’s made of.
“Of course my nerves will be on edge a bit next week.
“They were until Joe came through against Michael Wallisch, and until Daniel’s arm is raised after the Snijders fight it will be the same…
“Providing Daniel can solve this Dutch puzzle, we can push on with the Joyce fight and then we can hope for a world title fight next year as a mandatory contender.”