Colby Covington doubts Islam Makhachev is serious about fighting him. Lightweight titleholder Makhachev (24-1 MMA, 13-1 UFC) wants to chase dual-champion status if he gets past Charles Oliveira for a second time at UFC 294 later this month in Abu Dhabi. Covington (17-3 MMA, 12-3 UFC) challenges Leon Edwards for the welterweight strap in the UFC 296 headliner on Dec
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