Neither George Kambosos or Vasiliy Lomachenko currently hold a major world title belt, but one will walk away as IBF lightweight champion following their bout in Perth on Sunday, May 12.
Both fighters have previously sat atop the tree at 135-pounds and are desperate to get back there.
Australia's Kambosos (21-2) shocked the world when defeating Teofimo Lopez in November 2021.
MORE: Who is the best 135-pounder? The Sporting News' lightweight rankings
"Ferocious" has since lost those titles in in back-to-back defeats to Devin Haney, but the 30-year-old got back in the winners' circle when edging out Maxi Hughes last July, to put himself back in the world title picture.
Ukraine's Lomachenko (17-3) hopes the fight is the first step in one last attempt at unifying the division - one of the few accomplishments he's yet to tick off in a decorated career.
The 36-year-old southpaw picked up two Olympic gold medals in an all-time great amateur career, before switching to the pros and winning world titles across three weight divisions.
Lomachenko hasn't fought since his narrow defeat to Devin Haney last May.
In front of a sold-out RAC Arena, will Lomachenko prove too good for the tough Aussie or will Kambosos add another upset victory to his resume?
Here's what time the action is due to go down:
What time is George Kambosos fighting in Australia?
The Lomachenko vs. Kambosos main card is due to begin at 12pm AEST, which is 10am local time in Perth, on Sunday, May 12.
Depending on the length of the earlier bouts, the fighters should step into the ring of the main event around 2pm AEST / 12pm AWST.
Two fights will follow the main event, while the first bout of the undercard is due to begin at 11am AEST / 9am AWST.
| AWST (local) | ACST | AEST | |
| First fight | 9am | 10:30am | 11am |
| Main card | 10am | 11:30am | 12pm |
| Main event (approx.) | 12pm | 1:30pm | 2pm |
In the U.S., the event will take place on Saturday, May 11, with the main card due to begin at 10pm ET, and the main event likely to start around 12pm ET.
How to watch Vasiliy Lomachenko vs. George Kambosos in Australia: TV channel, live stream
Lomachenko vs. Kambosos is a pay-per-view event in Australia.
Fans can purchase the main card through Foxtel's Main Event or via streaming platform Kayo.
An existing Kayo subscription is not required to purchase the pay-per-view.
Vasiliy Lomachenko vs. George Kambosos price: How much does the event cost in Australia?
For Foxtel subscribers, the pay-per-view can be purchased through Main Event for an additional $69.95.
Lomachenko vs. Kambosos can also be purchased through Kayo for $69.95, although no existing subscription is required.
Vasiliy Lomachenko career record and bio
- Nationality: Ukrainian
- Born: February 17, 1988
- Height: 5'7" (170cm)
- Reach: 65 1/2 inches (166cm)
- Total fights: 20
- Record: 17-3 with 11 wins via knockout
George Kambosos career record and bio
- Nationality: Australian
- Born: June 14, 1993
- Height: 5'9" (175cm)
- Reach: 68 inches (173cm)
- Total fights: 22
- Record: 21-2 with 10 wins via knockout
Vasiliy Lomachenko vs. George Kambosos fight card
- Vasiliy Lomachencko vs. George Kambosos for the vacant IBF lightweight title
- Nina Hughes vs. Cherneka Johnson for the WBA bantamweight title
- Andrew Moloney vs. Pedro Guevara for the interim WBC super flyweight title
- Imam Khataev vs. Ricards Bolotniks; light heavyweight
- Faiga Opelu vs. Joe Goodall; heavyweight*
- Lucas Browne vs. Hemi Ahio; heavyweight*
*Fights to take place following the main event
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