“A member of the Indigenous Team of the Century, Sam was also a generous and selfless man who was passionate about Indigenous health and advocacy away from the field.

“On behalf of the Commission, I extend our sincerest condolences to Sam’s family, and all those who knew him.”

Last month it was revealed the former front-rower was fighting for his life after contracting a potentially deadly tropical disease in Cairns.

He joined the Canberra Raiders in 1983, playing with them until 1988 – the year he was first selected for Queensland in State of Origin.

It was a 3-0 whitewash series win for the Maroons, with Backo claiming man of the match in both games II and III.

He later had stints with Leeds Rhinos in England (1988-89) and the Broncos (1989-90).

After his football career, he worked with Indigenous prisoners.

Sisters Inside chief executive Debbie Kilroy, whose husband Joe was also a professional league player and Origin representative, also paid tribute to Backo.

“RIP Sam Backo. Joe and I and the family will miss you,” she posted on social media.

“Sending condolences and care to all who loved you.”

Born in Ingham in north Queensland in 1961, Backo started his playing rugby league in Cairns. Before his then-NSWRL (now NRL) career took off, he played for Woden Valley in NSW, Yeppoon in central Queensland and Fortitude Valley in the Brisbane Rugby League.

In 2017, Backo was one of 250 Aboriginal and Torres Strait Islander representatives at Australia’s first national Indigenous constitutional convention at Uluru.

His mother Evelyn Scott was the chairwoman of the Council for Aboriginal Reconciliation and earlier played a major role in the ‘yes’ campaign for the landmark 1967 Constitutional Referendum on Indigenous rights.