UFC 306 predictions, odds, best bets: Sean O'Malley, Diego Lopes among top picks to consider
But the UFC 306 fight card deserves attention on its own, with two championship fights atop the card. In the main event, Sean O'Malley defends the bantamweight championship against Merab Dvalishvili. The co-main event features a trilogy bout between women's flyweight champion Alexa Grasso and former champion Valentina Shevchenko.