This would effectively strip the 29-year-old Irishman of the belt but on Sunday, the UFC said that Ferguson had suffered a knee injury and Hawaiian Holloway would step in as a replacement and battle the undefeated Nurmagomedov instead.
The UFC 223 event takes place at the Barclays Center in Brooklyn and also features a women's straw-weight title rematch between champion Rose Namajunas and Poland's Joanna Jedrzejczyk, whom the American defeated to take the belt last November.
(Reporting by Philip O'Connor)
