Mike Hussey was Friday appointed a consultant coach to the Australian team for next year's blockbuster Ashes series against England and the 2027 World Cup.
The former Australian batsmen revealed in August that England's new red-ball coach, Stephen Fleming, had informally approached him to be their test batting mentor.
But the 51-year-old knocked back the audacious offer and has instead committed himself to helping his home nation arrest a batting crisis highlighted by their recent 2-1 test series defeat in South Africa.
Hussey, known as "Mr Cricket" for his technical expertise, will also provide coaching assistance during this month's home T20 series against England and the subsequent four-Test series against New Zealand.
He will additionally work with Australia during the 2028 Los Angeles Olympics, where cricket is on the agenda, and the T20 World Cup in 2028.
"I am extremely excited about being a part of the team in a more formal and meaningful role in the coming years," said Hussey, who played more than 300 matches for Australia across all formats.
"This team has achieved so much in recent times, to which I hope I can add value to the coaching and playing groups ahead of what will be an exciting and challenging period."
Hussey has extensive experience as a coach, including with both Australia and England.
He was part of England's coaching setup when they won the T20 World Cup in 2022 and was the Chennai Super Kings' long-time batting coach under Fleming in the Indian Premier League. He also led Welsh Fire in this year's Hundred.
"Mike has been a highly valued part of our staff in the past and brings a considerable skill set which is complementary to the coaches and players," said Australian head coach Andrew McDonald.
"Not only is his expertise as a player and coach across multiple formats, competitions, countries invaluable, so are his qualities as a person."