Zuffa Boxing has announced it's biggest signing to date, Ring and IBF cruiserweight champion Jai Opetaia, a rising star in the sport. The announcement was made Friday.

“Pumped for the future,” Opetaia said in a Zuffa Boxing video that was posted on X. “Exciting times. Let’s get these big fights over the line. Unification [and] undisputed soon. Let’s go.”

https://x.com/Zuffa_Boxing/status/2012319620641026150

Opetaia (29-0, 23 KOs) established himself as one of the top cruiserweights when he won the then-vacant IBF title in a unanimous decision victory over multiple-time world champion Mairis Briedis in May 2024.

The dynamic southpaw from Sydney, Australia, has successfully defended his belt five times over two reigns, including a rematch with Briedis.

Opetaia, 30, last fought on Dec. 6, taking down previously unbeaten Huseyin Cinkara by an eighth-round knockout.

Zuffa Boxing’s first show will take place January 23. The main event pits 154-pound contender Callum Walsh (15-0, 11 KOs) against Carlos Ocampo (38-3, 26 KOs) in a 10-round middleweight bout at Meta Apex in Las Vegas.

Also on the card, Misael Rodriguez (15-0, 7 KOs) will face Austin Deanda (17-0, 11 KOs) in a 10-round middleweight matchup. And Julian Rodriguez (24-1, 15 KOs) will fight Cain Sandoval (17-0, 15 KOs) in a 10-round welterweight bout.

The show begins at 9 p.m. ET and will be streamed on Paramount Plus.

Zuffa Boxing was formed by TKO and Sela, an entertainment conglomerate. The company’s leadership includes Dana White, president and CEO of UFC; Turki Alalshikh, chairman of Saudi Arabia’s General Entertainment Authority and owner of The Ring; Sela managing director and CEO Dr. Rakan AlHarthy, and WWE president Nick Khan, who is a TKO board member as well.