Former IFL light-heavyweight Mike Ciesnolevicz will make his UFC debut at on Feb. 21 at UFC 95 in London, England.
Ciesnolevicz will move up to heavyweight as he steps in for Justin McCully against Neil Grove.
Ciesnolevicz (15-3) fights out of the Miletich Fighting Systems and competed for Pat Miletich's Quad Cities Silverbacks team in the IFL.
After the shutdown of the IFL, Ciesnolevicz won three straight fights in local shows in the Midwest. Two of the fights happened on back-to-back nights.
The 29-year-old Ciesnolevicz joins two other former Silverbacks members in the Zuffa family. Welterweight Rory Markham currently fights in the UFC and lightweight Bart Palaszewski fights for the WEC.