LAS VEGAS -- UFC 306 will mark the first time a live competitive sporting event will take place inside of the $2.3 billion Sphere in Las Vegas. The sold out event will produce the largest gate in UFC history at over $20 million, shattering the previous record of $17.7 million set at UFC 205. The cheapest ticket on the secondary market an hour before the event was about $1,000.
While the Sphere is technically the star of the show, the card is stacked with UFC bantamweight champion Sean O'Malley putting up his title against Merab Dvalishvili and UFC women's flyweight champion Alexa Grasso putting up her title against Valentina Shevchenko in the third fight of their trilogy.
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