David Warner will leave "a really big set of shoes to fill" when he retires from international cricket after the T20 World Cup, former Australia captain Ricky Ponting says.

The 37-year-old will complete his stage-by-stage international retirement at the conclusion of the tournament, where Australia begin their campaign against Oman on Thursday.

The reigning Cricket World Cup winners and World Test champions, who will also play England, Scotland and Namibia in Group B, are aiming to complete the sweep of global international honours in the United States and West Indies.

Warner would be one of four players to have appeared in all three finals, along with Mitchell Starc, Pat Cummins and Travis Head.

A steady and injury-hit Indian Premier League season with the Delhi Capitals - led by three-time World Cup winner Ponting - led to question marks over his selection for this competition.

But, to Ponting, Warner's inclusion was never in doubt, and he is backing Jake Fraser-McGurk - the winner of the IPL's 2024 Electric Striker of the Season award and a travelling reserve - to fill the void when he brings the curtain down on his international career. 

"He's the sort of character you want to have around your team, especially in big tournaments like World Cups," Ponting told ESPNcricinfo.

"He's just one of those natural winners. Everything he does, he wants to win. You can see that with his attitude in the field and the way he goes about his cricket.

"There's more than just the runs that we'll be missing when Warner finally is gone. But hopefully, the depth of Australian cricket is good enough to find someone to come in and fill that void."

"It's going to be a really big set of shoes to fill, there's no doubt about that. They have got a lot of depth there.

"I'd be very surprised if he [Fraser-McGurk] doesn't go straight into the T20 team when David's finally done. I was lucky enough to coach him at the Delhi Capitals this year as well. He's got extreme talent."