They don’t call Las Vegas the “Fight Capital of the World” for nothing. Next Saturday, Las Vegas will host UFC 306 at the Sphere, while Canelo Alvarez and Edgar Berlanga battle for the WBC, WBO and WBA super middleweight boxing titles three miles away at the T-Mobile Arena. Both events will take place on Mexican Independence Day weekend. Bantamweight champion Sean O’Malley headlines the UFC 306 fight card against top contender Merab Dvalishvili in the historic event at the high-tech venue. The fight promotion is banking on O’Malley’s ability to generate interest. In an interview with Kevin Iole,…