▁ref us al ▁to ▁under go ▁a ▁random ▁drug ▁test ▁and ▁was ▁replaced ▁by ▁V itor ▁B elf ort . ▁ ▁The ▁bout ▁between ▁S onnen ▁and ▁B elf ort ▁was ▁to ▁be ▁cont ested ▁at ▁middle weight . ▁However , ▁S onnen ▁subsequently ▁failed ▁his ▁random ▁drug ▁test ▁and ▁was ▁removed ▁from ▁the ▁bout ▁and ▁ultimately ▁retired ▁from ▁the ▁sport . ▁The ▁following ▁day ▁it ▁was ▁announced ▁by ▁M MA ▁writer ▁Kevin ▁I ole ▁that ▁B elf ort ▁had ▁also ▁been ▁removed ▁from ▁the ▁card ▁due ▁to ▁the ▁in ability ▁of ▁the ▁U FC ▁finding ▁him ▁a ▁new ▁oppon ent . ▁ ▁A ▁bout ▁between ▁Dan ▁Hend erson ▁and ▁Daniel ▁C orm ier ▁was ▁briefly ▁linked ▁to ▁this ▁event ▁but ▁was ▁moved ▁up ▁to ▁U FC ▁ 1 7 3 ▁to ▁bol ster ▁that ▁event ' s ▁card . ▁ ▁Santiago ▁Pon zin ib bio ▁was ▁expected ▁to ▁face ▁Il dem ar ▁Alc ânt ara ▁but ▁was ▁forced ▁out ▁of ▁the ▁bout ▁with ▁a ▁kne e ▁injury . ▁He ▁was ▁replaced ▁by ▁Ken ny ▁Robert son . ▁ ▁During ▁the ▁event , ▁Stefan ▁Str uve ▁suffered ▁a ▁" near - f ain ting ▁episode " ▁and ▁his ▁bout ▁with ▁Matt ▁Mit r ione ▁on ▁the ▁pay - per - view ▁was ▁can ce led . ▁The ▁first ▁fight ▁of ▁the ▁main ▁card ▁was ▁already ▁happening ▁when ▁the ▁news ▁was ▁revealed ▁on ▁Twitter ▁and ▁it ▁was ▁officially ▁confirmed ▁on ▁the ▁broadcast ▁after ▁the ▁Br image - Do ane ▁fight ▁ended . ▁ ▁Results