Saturday’s UFC Fight Night 236 has encountered a pair of changes, the promotion announced Tuesday. Visa issues have forced Albert Duraev out of his bout vs. OKTAGON import Robert Bryczek (17-5 MMA, 0-0 UFC). In Duraev’s place steps Ihor Potieira (20-5 MMA, 1-3 UFC), who makes his UFC middleweight debut. This change was first reported by MMA Mania .