Australia were promoted to the pinnacle for the first time in nearly five years on Thursday, when the ranking system dropped results from the 2010-11 season from its calculations.
While hailed by most local media, Australia's promotion without a bowl being balled has raised eyebrows, coming only weeks after South Africa were awarded a $475,000 cheque by the ICC for finishing the season on top.
Rogers suggested he was also unconvinced. "I don't know, personally," Rogers said on Cricket Australia's website (
"Obviously, there's still some unfinished business. Losing four-nil in India - you can't do that if you're number one - but I think to beat South Africa in South Africa meant a lot.”
"They were number one and to go beat them in their place; I think that is a big achievement.”
"I think we're going in the right direction and we just need to keep playing well."
Australia lost 4-0 in India last year before being beaten 3-0 in England, but turned it around to thrash England 5-0 in the return Ashes series on home soil.
They finished the season strongly with a hard-fought 2-1 series win away to the Proteas.
Ironically, South Africa can reclaim the top ranking with test wins against Sri Lanka and Zimbabwe before Australia have a chance to defend it in a series against Pakistan in the United Arab Emirates in October.
"Australia is No.1 again not so much because it beat South Africa a few moments ago, but because previous adverse results... no longer count," Australian cricket writer Greg Baum wrote in Melbourne's The Age newspaper on Friday.


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