Julianna Peña will attempt to make the first defense of her second title reign against Olympic champ Kayla Harrison at UFC 316.

Dvalishvili, 34, enters on a 12-fight win streak and fresh off arguably the best win of his career against Umar Nurmagomedov, where he was a betting underdog to the unheralded challenger. O'Malley, 30, has not competed since the loss to Dvalishvili.

Following the announcement of the UFC 316 headliners, experts react to the fights and provide early betting analysis.

Sean O'Malley will have the chance to get UFC gold back around his waist when he rematches Merab Dvalishvili in the UFC 316 main event. After dropping the bantamweight belt by unanimous decision to Dvalishvili (19-4 MMA,

The UFC announced Tuesday that reigning bantamweight champion Merab Dvalishvili will headline the event in a rematch with Sean O'Malley at the Prudential Center. In the co-main event, the women's bantamweight crown will also be on the line when Julianna Peña begins her second title reign with a defense against Kayla Harrison.

Merab Dvalishvili faces Sean O’Malley in a rematch while Julianna Pena puts her bantamweight title up for grabs against Kayla Harrison in the new main and co-main events just announced for UFC 316 on June 7 from the Prudential Center in Newark,