Australia’s fighting emperor and former unified world champion, George Kambosos Jr., is on a mission for a new belt. Standing in his way is a Ukrainian fight legend, Vasiliy Lomachenko, a three-division world champion intent on writing another triumphant chapter in his Hall of Fame career.

Lomachenko and Kambosos will clash for the vacant IBF lightweight world title as part of a world title tripleheader on Sunday, May 12, at RAC Arena in Perth, Australia. Two additional world title fights will be announced in the coming weeks.

“George Kambosos is one of the best lightweights in the world. Loma is a legend. He is also an aging and smaller legend. George Kambosos has never been more hungry and has the chance to climb the mountain again. It’s going to be a great fight and a huge event in Perth,” said Lou DiBella, President of DiBella Entertainment.

Promoted by DiBella Entertainment, Top Rank, Ferocious Promotions, TEG Sport and Duco Events, Lomachenko-Kambosos and the two additional world title fights will be broadcast in prime time in the United States on Saturday, May 11 at 10 p.m. ET/7 p.m. PT, live on ESPN, ESPN Deportes and ESPN+. 

“Vasiliy Lomachenko is among the most electrifying fighters I’ve ever seen, a physical marvel still at the top of his game,” said Top Rank chairman Bob Arum. “We’ve seen George Kambosos Jr. upset the odds before, and he is a warrior that cannot be underestimated. This is a fascinating clash of styles that marks the most significant boxing match ever to take place in the beautiful city of Perth. Thank you to the Western Australian Government for their support in making this historic event a reality.”   

Lomachenko (17-3, 11 KOs), a two-time Olympic gold medalist, won the featherweight world title in his third pro fight and was a three-weight champion within his first dozen bouts. Despite being undersized as a lightweight, “Loma” toppled Jorge Linares, Jose Pedraza and Luke Campbell to become a three-belt unified champion. After a 2020 points loss to Teofimo Lopez inside the MGM Grand Las Vegas Bubble, he reeled off three consecutive wins. In the midst of that winning streak, he joined a territorial defense battalion in his homeland during the Russia-Ukraine war. Last May, he came close to becoming the undisputed lightweight champion, dropping a hotly contested decision to unbeaten phenom Devin “The Dream” Haney.

Kambosos (21-2, 10 KOs), from Sydney, Australia, spent eight-plus years climbing the lightweight ranks after turning pro in 2013. He earned the IBF No. 1 spot after outpointing Lee Selby in October 2020. Almost 13 months later, he authored the 2021 Upset of the Year with a split decision over Teofimo Lopez to become the division’s unified world champion. In June 2022, his showdown against Haney for the undisputed title drew more than 41,000 fans to Marvel Stadium in Melbourne, Australia. Kambosos lost a unanimous decision to Haney, then dropped the rematch by decision four months later at Rod Laver Arena in Melbourne. “The Emperor” regrouped in July 2023, edging Maxi Hughes by majority decision to secure another crack at world title glory.