What do you mean "Topuria moves up to to welterweight, the UFC would probably make that fight", that would be the only reason he moves up, he is already the smallest LW in the Top 15, but imho that fight shouldnt happen at 170lbs, or at least not right away, Topuria doesnt have a single defense yet to be getting a 2nd free shot at another title, in this case, against a LW that just moved to WW, after beating a former champion to get the belt, that fight should only happen at 155lbs, but i dont see Makhachev dropping down again unless maybe, he loses in his first defense at WW.