UFC 306: O'Malley vs. Dvalishvili live results and analysis

UFC 306 takes place at the Sphere in Las Vegas on Saturday night .

The main card is on ESPN+ pay-per-view at 10 p.m. ET , with prelims on ESPNews and ESPN+ at 7:30p . ET.

The event also features a women's flyweight title bout between champion Alexa Grasso and former champ Valentina Shevchenko .

UFC 306 will be the first live sporting event at the revolutionary Sphere in Las Vegas with UFC 306 .

UFC bantamweight champion Sean O'Malley will defend his title against Merab Dvalishvili .

The event is sponsored by an arm of the government of Saudi Arabia and the Saudi Arabian government.

UFC 306 is the first pay-per-view event from Dana White that isn't simply billed as UFC followed by a number.

"Noche UFC" is UFC 's first sporting event at the Sphere, the $2.3 billion venue that opened last year .

The co-main event pits women's flyweight champion Alexa Grasso against former titlist Valentina Shevchenko .

The event will also premiere the film " For Mexico , For All Time," told in six 90-second chapters between fights and displayed inside the Sphere .