UFC 306 'Embedded,' No. 5: Brian Ortega tests out new hyperbaric oxygen chamber

The UFC is back in “Sin City” with UFC 306, and the popular “Embedded” fight week video series is here to document what’s happening behind the scenes.

UFC 306 (pay-per-view, ESPNews, ESPN+), also known as Noche UFC in celebration of Mexican Independence Day, takes place Saturday at Sphere in Las Vegas.

In the main event, bantamweight champion Sean O'Malley (18-1 MMA, 10-1 UFC) goes for his second title defense against No. 1 contender Merab Dvalishvili (17-4 MMA, 10-2 UFC). The co-headliner will see a trilogy bout between women’s flyweight champion Alexa Grasso (16-3-1 MMA, 8-3-1 UFC) and Valentina Shevchenko (23-4-1 MMA, 12-3-1 UFC), who fought to a majority draw in their rematch one year ago. Also on the card is a key featherweight bout between Brian Ortega (16-3 MMA, 8-3 UFC) and Diego Lopes (25-6 MMA, 4-1 UFC).

The fifth episode of “Embedded” follows the featured fighters while they get ready for fight week. Here is the UFC’s description of the episode from YouTube:

The stars of UFC 306 make their rounds with the Media; Brian Ortega uses a hyperbaric oxygen chamber; Champ Sean O’Malley gets has a striking session; Athletes get dressed for the UFC 306 Press Conference; All eyes are on the Sphere in Las Vegas as all the fighters for UFC 306 gather for the Press Conference.

Previous UFC 306 ‘Embedded’ episodes

• UFC 306 ‘Embedded,’ No. 2: Sean O'Malley transforms into ‘the Suga Show’

For more on the card, visit MMA Junkie’s event hub for UFC 306.