George Kambosos Jr was born on 14 June 1993, he is an Australian professional boxer who held the WBA (Super), IBF, WBO, and The Ring lightweight titles between November 2021 and June 2022.

Kambosos was born in Sydney, New South Wales, to parents of Greek descent. His paternal grandparents moved from Sparta to Australia and Kambosos has the famous Spartan war cry “Never retreat, never surrender” tattooed on his body in homage to his heritage.

He began playing junior rugby league for the Gymea Gorillas at a young age and was often bullied as a child for being overweight, so his father enrolled him in boxing classes at 11 years of age to improve his fitness.

Kambosos made his professional boxing debut in May 2013, at the age of 19, when he faced Filipino fighter Jayson Mac Gura and was victorious via a second-round technical knockout. In December 2016, he captured the WBA Oceania title by beating world number nine Brandon Ogilvie.

He then went on to face Qamil Balla in May 2017, whom he defeated by unanimous decision in a ten-round fight. Five months later, he knocked out Krai Setthaphon in the ninth round and won the WBA Oceania and IBF Pan Pacific titles in the lightweight division.

On 19 January 2019, Kambosos defeated Rey Perez at The MGM Grand in Las Vegas on the undercard of Manny Pacquiao vs Adrien Broner via unanimous decision in his second fight on US soil.

On 7 June in Athens, Kambosos returned to his native land of Greece and knocked out Venezuelan 11–2 (9 KOs) Richard Pena in round six in front of the packed-out Galatsi Olympic Hall. He called out former two-division world champion José Pedraza after his victory.

Is George Kambosos Greek?

George Kambosos was born in Sydney, New South Wales, but he comes from Greek as his parents are of Greek decents.