im guessing Conor vs Ferguson . Dana said Conor “will probably fight Tony in vegas” (yeah I know. Dana is a liar. But occasionally he speaks the truth). Also rumored that Khabib will fight Barboza on 219. Would make sense to have that match on the card in case of injury to Ferguson... Dana always tries to make the end of the card a big one, so Conor vs Tony is my guess. Of course I could be wrong. Other thoughts?