Audley Harrison will face Brazilian George Arias, live on Sky Box Office.
The 2000 Olympic gold medallist's opponent was confirmed just five days before he looks to kickstart his career again on the Amir Khan-Breidis Prescott undercard.
Harrison was due to face Prizefighter champion Martin Rogan before the Irishman withdrew with an injury.
But late replacement Arias will be no pushover, boasting a 51-41-10 record, 29 coming early.
He took Sky Sports pundit Johnny Nelson the distance in a challenge for his WBO cruiserweight title back in 2001, although domestically he boxes as a heavyweight and has been Brazilian champion since 1998.
Advantage
He has also gone 12 rounds with current European heavyweight champion Sinan Simal Sam and the once-rated Owen 'What The Heck' Beck and has only been stopped four times in his career.
Harrison though, will enjoy a height and reach advantage and comes into the ring on the back of fifth-round stoppage of Jason Barnett in April.
An impressive victory over Arias could set up a third and defining meeting with British champ and bitter rival Danny Williams and put the 36-year-old back in the world-title reckoning.
