The big news concerning UFC 234 is that middleweight champion Robert Whittaker is out of his main event title defense vs. Kelvin Gastelum, as he’s set to undergo surgery on a hernia that will keep him from fighting on Saturday night’s card. As a result, the UFC 234 main event is now Israel Adesanya vs. Anderson Silva, which was originally scheduled to be the co-main. It will remain three rounds due to the short notice nature of this decision.
In an unexpected move, the UFC has bumped Lando Vannata vs. Marcos Rosa, slated for the Fight Pass prelims, all the way to the co-main slot.