George Kambodas Jr defends his IBO lightweight title and also clashes with Vasily Lomachenko for the vacant IBF lightweight title at the RAC Arena in Perth on Sunday.
Kambosos Jr (21-2; 10) won on a split decision against Lee Selby in November 2021 and upset Teofimo Lopez to take the WBA ‘super’, IBF and WBO titles after coming back from a knockdown in the tenth round.
He failed against Devin Haney in a challenge for the undisputed title in Melbourne in June 2022 and, in a rematch, was outpointed with an ever wider margin by Haney.
The 30-year-old Kambosas Jr won the IBO title against Maxi Hughes in his most recent fight on a disputed majority points decision.
One of the greatest amateurs in history, the 36-year-old Lomachenko (17-3; 11), a double Olympic champion, came back from an early defeat as a professional to win world titles at featherweight and junior lightweight before being upset at lightweight by Teofimo Lopez.
He won his next three fights before losing to Devin Haney in May 2023 and many believed he was the winner against Haney.
Some critics are predicting a points win for Lomachenko.
On the same card Andrew Moloney (26-3; 16) meets Pedro Guevara (41-4-1; 22) for the interim WBC junior bantamweight title.