UFC Fight Night 249 predictions: Who's picking Mackenzie Dern upset of Amanda Ribas in rematch? MMA JunkieUFC Fight Night 249 live updates: Results, round-by-round coverage of every fight MMA JunkieUFC Vegas 101 Results: Dern vs. Ribas 2 MMA FightingUFC Vegas 101 predictions, odds, full card picks: Will Mackenzie Dern get redemption against Amanda Ribas?