Johan Botha has captained his native South Africa and played in 123 international matches for the Proteas, but says it would be "unbelievable" to represent Australia at the highest level.
Born in Johannesburg and a regular feature in South Africa's limited-overs teams between 2005 and 2012, Botha moved to Australia four years ago and was granted citizenship by his adopted country last month.
The 34-year-old has impressed in the Big Bash League for Sydney Sixers and is considered an outside bet to earn selection in Australia's squad for an upcoming Test tour of India.
"It would be unbelievable," Botha is quoted as saying by Cricket Australia's website when asked what it would mean to play for the nation.
"It's a team I've watched for a long time, especially growing up when South Africa didn't play international cricket.
"Australia was my favourite team to watch. To do that I think it would feel a little bit unreal but we'll have to wait and see.
"I suppose there might be a chance, a very slim chance and as long as there's that, there's a little chance. But it's up to Cricket Australia.
"I just need to hopefully help the Sixers win some games and if it comes my way, great. If it doesn't then I'm going to give the Sixers everything I've got."
Australia selector Mark Waugh described Botha as an "unusual off-spinner" during a Big Bash commentary stint on Tuesday, adding: "Tell you what, he wouldn't be the worst in India would he?"