Photo by Cooper Neill/Zuffa LLC Islam Makhachev has been the pound-for-pound king for over 600 days. After UFC 317 , that reign is in serious jeopardy. Ilia Topuria wanted Makhachev to be his legacy-making statement, but he’ll have to settle for claiming a vacant lightweight title by scoring a Knockout of the Year contender against future Hall of Famer Charles Oliveira and becoming one of just 10 fighters to hold UFC championships in two divisions.