UFC heavyweight champion Jon Jones was already a big favorite to defeat Stipe Miocic . Now he’s a massive one. When the odds were released for the UFC 309 main event after it was officially booked last month, Jones (27-1 MMA, 22-1 UFC) opened as a -410 favorite and Miocic (20-4 MMA, 14-4 UFC) a +320 underdog via DraftKings on Sept.
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