Ponting's Australians struggled in this summer's ICC World Twenty20
Australia captain Ricky Ponting has announced his retirement from international Twenty20 cricket.
Ponting, 34, will remain as captain of the Australian Test and one-day sides but will step away from the shortest format in a bid to prolong his career.
In a statement, he revealed he had made the decision "after much thought and careful consideration".
Ponting, determined to win back the Ashes, will have "set periods of rest" during the international calendar.
He went on: "As I said after the fifth Test in London, I am hoping to continue playing Test cricket for as long as possible and retiring from the Twenty20 format gives me the best chance of doing this.
"While I will no longer be available for Australian Twenty20 cricket, I look forward to playing with Tasmania's KFC Big Bash team where possible and to fulfilling my contract with the Kolkata Knight Riders in the Indian Premier League."
Cricket Australia chief executive officer James Sutherland said: "We are very supportive of the decision Ricky has made and understanding of the reasons behind it.
"Needless to say he will be a huge loss to the Twenty20 side but it does present opportunities for the other players and leaders within Australian cricket to gain further experience.
"While we have not seen much of Ricky in Australia's Twenty20 matches in recent times, his innings in the first ever Twenty20 International against New Zealand at Auckland was probably the best innings I have ever seen in the Twenty20 form of the game."
On that occasion, Ponting struck a magnificent unbeaten 98 off 55 balls with eight fours and five sixes in a 44-run victory.
Michael Clarke, vice-captain and current stand-in during the one-day series in England, is expected to be named as Ponting's replacement as Twenty20 skipper.
Ponting is the leading run-scorer and century-maker in Australia Test history.
He was skipper of the side who were heavily beaten by West Indies and Sri Lanka to be dumped out of the ICC World Twenty20 in the group stage England in June.
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