LONDON – Charles Oliveira welcomes a grappling battle with Islam Makhachev in their vacant lightweight title fight at UFC 280 . Although Oliveira (33-8 MMA, 21-8 UFC) seemingly holds a sizable striking advantage over Makhachev (22-1 MMA, 11-1 UFC) going into the Oct. 22 headliner in Abu Dhabi, the Brazilian knows the perception that he might be inferior on the mat.
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