Ariel Helwani reacts to the UFC's latest breaking news of Merab Dvalishvili vs. Sean O'Malley 2.

Compatriot Harrison, a former PFL champion, joined the UFC last April with a submission of ex-UFC title holder Holly Holm. The 34-year-old then outpointed Ketlen Vieira at the same event where Pena regained the 135lb title, UFC 307.

Merab Dvalishvili and Sean O'Malley will run it back in a bantamweight title rematch, and Julianna Peña will defend her belt against Kayla Harrison at UFC 316 on June 7, the promotion announced.

Merab Dvalishvili and Sean O'Malley will headline UFC 316 in a bantamweight rematch on June 7, per ESPN's Brett Okamoto. Dvalishvili and O'Malley last fought at UFC 306 in September, where Dvalishvili claimed the UFC Championship via unanimous decision.

Mania! Let’s start the night off by taking look back over the three biggest stories of Wednesday, April 2. Gable Steveson to wrestle Craig Jones at CJI 2: Twice in the last week that Gable Steveson is topping the charts,

Sean O’Malley reacts to his bantamweight title rematch with Merab Dvalishvili at UFC 316, saying injuries rendered him less than 100 percent in their first fight.

Sean O'Malley is promising fireworks in his next fight against Merab Dvaishvili, and is asking the fans to expect the unexpected.

Sean O'Malley has promised UFC Bantamweight Champion Merab Dvalishvili that he'll be facing an entirely different beast come fight night.

Sean O’Malley has reacted to his UFC 316 title rematch against Merab Dvalishvili being made official for Newark on June 7.